13214931 has 4 divisors (see below), whose sum is σ = 17619912. Its totient is φ = 8809952.

The previous prime is 13214921. The next prime is 13214947. The reversal of 13214931 is 13941231.

13214931 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13214931 - 2⁹ = 13214419 is a prime.

It is a super-2 number, since 2×13214931² = 349268802669522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13214921) 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, 2202486 + ... + 2202491.

It is an arithmetic number, because the mean of its divisors is an integer number (4404978).

Almost surely, 2^13214931 is an apocalyptic number.

13214931 is a deficient number, since it is larger than the sum of its proper divisors (4404981).

13214931 is an equidigital number, since it uses as much as digits as its factorization.

13214931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4404980.

The product of its digits is 648, while the sum is 24.

The square root of 13214931 is about 3635.2346554246. The cubic root of 13214931 is about 236.4222248567.

The spelling of 13214931 in words is "thirteen million, two hundred fourteen thousand, nine hundred thirty-one".