13226931 has 6 divisors (see below), whose sum is σ = 19105580. Its totient is φ = 8817948.

The previous prime is 13226921. The next prime is 13227023. The reversal of 13226931 is 13962231.

It is not a de Polignac number, because 13226931 - 2⁹ = 13226419 is a prime.

It is a super-2 number, since 2×13226931² = 349903407357522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13226895 and 13226904.

It is not an unprimeable number, because it can be changed into a prime (13226921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 734821 + ... + 734838.

Almost surely, 2^13226931 is an apocalyptic number.

13226931 is a deficient number, since it is larger than the sum of its proper divisors (5878649).

13226931 is a wasteful number, since it uses less digits than its factorization.

13226931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469665 (or 1469662 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 13226931 is about 3636.8847933362. The cubic root of 13226931 is about 236.4937653585.

The spelling of 13226931 in words is "thirteen million, two hundred twenty-six thousand, nine hundred thirty-one".