31925113 has 8 divisors (see below), whose sum is σ = 34868736. Its totient is φ = 28988400.

The previous prime is 31925107. The next prime is 31925137. The reversal of 31925113 is 31152913.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31925113 - 2¹⁷ = 31794041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31925213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15195 + ... + 17167.

It is an arithmetic number, because the mean of its divisors is an integer number (4358592).

Almost surely, 2^31925113 is an apocalyptic number.

It is an amenable number.

31925113 is a deficient number, since it is larger than the sum of its proper divisors (2943623).

31925113 is a wasteful number, since it uses less digits than its factorization.

31925113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3455.

The product of its digits is 810, while the sum is 25.

The square root of 31925113 is about 5650.2312342063. The cubic root of 31925113 is about 317.2323592373.

The spelling of 31925113 in words is "thirty-one million, nine hundred twenty-five thousand, one hundred thirteen".