13057906 has 8 divisors (see below), whose sum is σ = 19689984. Its totient is φ = 6494580.

The previous prime is 13057841. The next prime is 13057909. The reversal of 13057906 is 60975031.

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

It is not an unprimeable number, because it can be changed into a prime (13057909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16710 + ... + 17473.

It is an arithmetic number, because the mean of its divisors is an integer number (2461248).

Almost surely, 2^13057906 is an apocalyptic number.

13057906 is a deficient number, since it is larger than the sum of its proper divisors (6632078).

13057906 is a wasteful number, since it uses less digits than its factorization.

13057906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34376.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 13057906 is about 3613.5724705615. The cubic root of 13057906 is about 235.4820706295.

The spelling of 13057906 in words is "thirteen million, fifty-seven thousand, nine hundred six".