13210957 has 4 divisors (see below), whose sum is σ = 13311936. Its totient is φ = 13109980.

The previous prime is 13210937. The next prime is 13211059. The reversal of 13210957 is 75901231.

13210957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an emirpimes, since its reverse is a distinct semiprime: 75901231 = 7 ⋅10843033.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13210957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13210907) 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, 50293 + ... + 50554.

It is an arithmetic number, because the mean of its divisors is an integer number (3327984).

Almost surely, 2^13210957 is an apocalyptic number.

It is an amenable number.

13210957 is a deficient number, since it is larger than the sum of its proper divisors (100979).

13210957 is a wasteful number, since it uses less digits than its factorization.

13210957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100978.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 13210957 is about 3634.6880196242. The cubic root of 13210957 is about 236.3985234814.

The spelling of 13210957 in words is "thirteen million, two hundred ten thousand, nine hundred fifty-seven".