31975461 has 24 divisors (see below), whose sum is σ = 55565120. Its totient is φ = 17309376.

The previous prime is 31975457. The next prime is 31975481. The reversal of 31975461 is 16457913.

31975461 is a `hidden beast` number, since 3 + 197 + 5 + 461 = 666.

It is not a de Polignac number, because 31975461 - 2² = 31975457 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31975481) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12160 + ... + 14553.

Almost surely, 2^31975461 is an apocalyptic number.

It is an amenable number.

31975461 is a deficient number, since it is larger than the sum of its proper divisors (23589659).

31975461 is a wasteful number, since it uses less digits than its factorization.

31975461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26745 (or 26742 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 31975461 is about 5654.6848718563. The cubic root of 31975461 is about 317.3990370693.

The spelling of 31975461 in words is "thirty-one million, nine hundred seventy-five thousand, four hundred sixty-one".