13031696 has 20 divisors (see below), whose sum is σ = 25932492. Its totient is φ = 6339456.

The previous prime is 13031677. The next prime is 13031717. The reversal of 13031696 is 69613031.

It can be written as a sum of positive squares in 2 ways, for example, as 10471696 + 2560000 = 3236^2 + 1600^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10415 + ... + 11598.

Almost surely, 2^13031696 is an apocalyptic number.

13031696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13031696 is a deficient number, since it is larger than the sum of its proper divisors (12900796).

13031696 is a wasteful number, since it uses less digits than its factorization.

13031696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22058 (or 22052 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 13031696 is about 3609.9440438877. The cubic root of 13031696 is about 235.3244108644.

The spelling of 13031696 in words is "thirteen million, thirty-one thousand, six hundred ninety-six".