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144453 = 3179269

144453 has 8 divisors (see below), whose sum is σ = 194400. Its totient is φ = 95408.

The previous prime is 144451. The next prime is 144461. The reversal of 144453 is 354441.

Adding to 144453 its reverse (354441), we get a palindrome (498894).

144453 is a nontrivial binomial coefficient, being equal to C(538, 2).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144453 - 21 = 144451 is a prime.

It is an Ulam number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 403 + ... + 671.

It is an arithmetic number, because the mean of its divisors is an integer number (24300).

2144453 is an apocalyptic number.

144453 is the 537-th triangular number and also the 269-th hexagonal number.

It is an amenable number.

144453 is a deficient number, since it is larger than the sum of its proper divisors (49947).

144453 is a wasteful number, since it uses less digits than its factorization.

144453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451.

The product of its digits is 960, while the sum is 21.

The square root of 144453 is about 380.0697304443. The cubic root of 144453 is about 52.4697331210.

The spelling of 144453 in words is "one hundred forty-four thousand, four hundred fifty-three".

Divisors: 1 3 179 269 537 807 48151 144453