31345492 has 6 divisors (see below), whose sum is σ = 54854618. Its totient is φ = 15672744.

The previous prime is 31345477. The next prime is 31345511. The reversal of 31345492 is 29454313.

It can be written as a sum of positive squares in only one way, i.e., 31315216 + 30276 = 5596^2 + 174^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3918183 + ... + 3918190.

Almost surely, 2^31345492 is an apocalyptic number.

It is an amenable number.

31345492 is a deficient number, since it is larger than the sum of its proper divisors (23509126).

31345492 is a wasteful number, since it uses less digits than its factorization.

31345492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7836377 (or 7836375 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 31345492 is about 5598.7044930055. The cubic root of 31345492 is about 315.3007692486.

The spelling of 31345492 in words is "thirty-one million, three hundred forty-five thousand, four hundred ninety-two".