452137631 has 4 divisors (see below), whose sum is σ = 493241064. Its totient is φ = 411034200.

The previous prime is 452137607. The next prime is 452137633. The reversal of 452137631 is 136731254.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-452137631 is a prime.

It is a super-2 number, since 2×452137631² = 408856874732584322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452137633) 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, 20551700 + ... + 20551721.

It is an arithmetic number, because the mean of its divisors is an integer number (123310266).

Almost surely, 2^452137631 is an apocalyptic number.

452137631 is a deficient number, since it is larger than the sum of its proper divisors (41103433).

452137631 is a wasteful number, since it uses less digits than its factorization.

452137631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41103432.

The product of its digits is 15120, while the sum is 32.

The square root of 452137631 is about 21263.5281879560. The cubic root of 452137631 is about 767.5209137457.

Adding to 452137631 its reverse (136731254), we get a palindrome (588868885).

The spelling of 452137631 in words is "four hundred fifty-two million, one hundred thirty-seven thousand, six hundred thirty-one".