13214631 has 16 divisors (see below), whose sum is σ = 18247680. Its totient is φ = 8500800.

The previous prime is 13214623. The next prime is 13214639. The reversal of 13214631 is 13641231.

13214631 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13214623) and next prime (13214639).

It is not a de Polignac number, because 13214631 - 2³ = 13214623 is a prime.

It is a super-2 number, since 2×13214631² = 349252944932322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13214598 and 13214607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13214639) 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 15 ways as a sum of consecutive naturals, for example, 10906 + ... + 12056.

It is an arithmetic number, because the mean of its divisors is an integer number (1140480).

Almost surely, 2^13214631 is an apocalyptic number.

13214631 is a deficient number, since it is larger than the sum of its proper divisors (5033049).

13214631 is a wasteful number, since it uses less digits than its factorization.

13214631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286.

The product of its digits is 432, while the sum is 21.

The square root of 13214631 is about 3635.1933923796. The cubic root of 13214631 is about 236.4204357894.

Adding to 13214631 its reverse (13641231), we get a palindrome (26855862).

The spelling of 13214631 in words is "thirteen million, two hundred fourteen thousand, six hundred thirty-one".