537907231 has 4 divisors (see below), whose sum is σ = 538549200. Its totient is φ = 537265264.

The previous prime is 537907213. The next prime is 537907241. The reversal of 537907231 is 132709735.

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

It is a cyclic number.

It is not a de Polignac number, because 537907231 - 2⁵ = 537907199 is a prime.

It is a super-2 number, since 2×537907231² = 578688378324174722, 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 (537907241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319726 + ... + 321403.

It is an arithmetic number, because the mean of its divisors is an integer number (134637300).

Almost surely, 2^537907231 is an apocalyptic number.

537907231 is a deficient number, since it is larger than the sum of its proper divisors (641969).

537907231 is an equidigital number, since it uses as much as digits as its factorization.

537907231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641968.

The product of its (nonzero) digits is 39690, while the sum is 37.

The square root of 537907231 is about 23192.8271454775. The cubic root of 537907231 is about 813.2719510284.

The spelling of 537907231 in words is "five hundred thirty-seven million, nine hundred seven thousand, two hundred thirty-one".