13031286 has 8 divisors (see below), whose sum is σ = 26062584. Its totient is φ = 4343760.

The previous prime is 13031261. The next prime is 13031309. The reversal of 13031286 is 68213031.

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

13031286 is an admirable number.

It is a Curzon number.

It is a congruent number.

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, 1085935 + ... + 1085946.

It is an arithmetic number, because the mean of its divisors is an integer number (3257823).

Almost surely, 2^13031286 is an apocalyptic number.

13031286 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13031286 is a wasteful number, since it uses less digits than its factorization.

13031286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171886.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 13031286 is about 3609.8872558572. The cubic root of 13031286 is about 235.3219429324.

The spelling of 13031286 in words is "thirteen million, thirty-one thousand, two hundred eighty-six".