13313957 has 4 divisors (see below), whose sum is σ = 13322400. Its totient is φ = 13305516.

The previous prime is 13313939. The next prime is 13313977. The reversal of 13313957 is 75931331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13313957 - 2⁶ = 13313893 is a prime.

It is a super-2 number, since 2×13313957² = 354522901995698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073 + ... + 5270.

It is an arithmetic number, because the mean of its divisors is an integer number (3330600).

Almost surely, 2^13313957 is an apocalyptic number.

It is an amenable number.

13313957 is a deficient number, since it is larger than the sum of its proper divisors (8443).

13313957 is an equidigital number, since it uses as much as digits as its factorization.

13313957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8442.

The product of its digits is 8505, while the sum is 32.

The square root of 13313957 is about 3648.8295383588. The cubic root of 13313957 is about 237.0112986952.

The spelling of 13313957 in words is "thirteen million, three hundred thirteen thousand, nine hundred fifty-seven".