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144122043451 = 1107711301081
BaseRepresentation
bin1000011000111001010…
…1111101110000111011
3111210000010001101100011
42012032111331300323
54330130220342301
6150113031322351
713261323104461
oct2061625756073
9453003041304
10144122043451
1156138155421
1223b222203b7
131078a874769
146d92c70831
153b37a52a51
hex218e57dc3b

144122043451 has 4 divisors (see below), whose sum is σ = 144123455304. Its totient is φ = 144120631600.

The previous prime is 144122043421. The next prime is 144122043497. The reversal of 144122043451 is 154340221441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154340221441 = 722048603063.

It is a cyclic number.

It is not a de Polignac number, because 144122043451 - 25 = 144122043419 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144122043421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539770 + ... + 761311.

It is an arithmetic number, because the mean of its divisors is an integer number (36030863826).

Almost surely, 2144122043451 is an apocalyptic number.

144122043451 is a deficient number, since it is larger than the sum of its proper divisors (1411853).

144122043451 is a wasteful number, since it uses less digits than its factorization.

144122043451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411852.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 144122043451 its reverse (154340221441), we get a palindrome (298462264892).

The spelling of 144122043451 in words is "one hundred forty-four billion, one hundred twenty-two million, forty-three thousand, four hundred fifty-one".

Divisors: 1 110771 1301081 144122043451