13249331 has 2 divisors, whose sum is σ = 13249332. Its totient is φ = 13249330.

The previous prime is 13249321. The next prime is 13249337. The reversal of 13249331 is 13394231.

It is a happy number.

13249331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13249331 - 2⁶ = 13249267 is a prime.

It is a super-2 number, since 2×13249331² = 351089543895122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13249331.

It is not a weakly prime, because it can be changed into another prime (13249337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6624665 + 6624666.

It is an arithmetic number, because the mean of its divisors is an integer number (6624666).

Almost surely, 2^13249331 is an apocalyptic number.

13249331 is a deficient number, since it is larger than the sum of its proper divisors (1).

13249331 is an equidigital number, since it uses as much as digits as its factorization.

13249331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 26.

The square root of 13249331 is about 3639.9630492630. The cubic root of 13249331 is about 236.6271919438.

The spelling of 13249331 in words is "thirteen million, two hundred forty-nine thousand, three hundred thirty-one".