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144113453 = 1113101223
BaseRepresentation
bin10001001011011…
…11111100101101
3101001011201111022
420211233330231
5243343112303
622144503525
73366641561
oct1045577455
9331151438
10144113453
1174391630
124031aba5
1323b1a743
14151d56a1
15c9ba438
hex896ff2d

144113453 has 4 divisors (see below), whose sum is σ = 157214688. Its totient is φ = 131012220.

The previous prime is 144113429. The next prime is 144113477. The reversal of 144113453 is 354311441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 354311441 = 1132210131.

It is an interprime number because it is at equal distance from previous prime (144113429) and next prime (144113477).

It is a cyclic number.

It is not a de Polignac number, because 144113453 - 28 = 144113197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144113153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6550601 + ... + 6550622.

It is an arithmetic number, because the mean of its divisors is an integer number (39303672).

Almost surely, 2144113453 is an apocalyptic number.

It is an amenable number.

144113453 is a deficient number, since it is larger than the sum of its proper divisors (13101235).

144113453 is a wasteful number, since it uses less digits than its factorization.

144113453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13101234.

The product of its digits is 2880, while the sum is 26.

The square root of 144113453 is about 12004.7262775958. The cubic root of 144113453 is about 524.2858959352.

Adding to 144113453 its reverse (354311441), we get a palindrome (498424894).

The spelling of 144113453 in words is "one hundred forty-four million, one hundred thirteen thousand, four hundred fifty-three".

Divisors: 1 11 13101223 144113453