531915492 has 12 divisors (see below), whose sum is σ = 1241136176. Its totient is φ = 177305160.

The previous prime is 531915491. The next prime is 531915493. The reversal of 531915492 is 294519135.

It is an interprime number because it is at equal distance from previous prime (531915491) and next prime (531915493).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 531915492.

It is not an unprimeable number, because it can be changed into a prime (531915491) 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, 22163134 + ... + 22163157.

Almost surely, 2^531915492 is an apocalyptic number.

It is an amenable number.

531915492 is an abundant number, since it is smaller than the sum of its proper divisors (709220684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531915492 is a wasteful number, since it uses less digits than its factorization.

531915492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44326298 (or 44326296 counting only the distinct ones).

The product of its digits is 48600, while the sum is 39.

The square root of 531915492 is about 23063.2931733523. The cubic root of 531915492 is about 810.2409952013.

The spelling of 531915492 in words is "five hundred thirty-one million, nine hundred fifteen thousand, four hundred ninety-two".