13885331 has 2 divisors, whose sum is σ = 13885332. Its totient is φ = 13885330.

The previous prime is 13885309. The next prime is 13885337. The reversal of 13885331 is 13358831.

13885331 is digitally balanced in base 3, 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 a de Polignac number, because none of the positive numbers 2^k-13885331 is a prime.

It is a super-2 number, since 2×13885331² = 385604833959122, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (13885337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6942665 + 6942666.

It is an arithmetic number, because the mean of its divisors is an integer number (6942666).

Almost surely, 2^13885331 is an apocalyptic number.

13885331 is a deficient number, since it is larger than the sum of its proper divisors (1).

13885331 is an equidigital number, since it uses as much as digits as its factorization.

13885331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 32.

The square root of 13885331 is about 3726.3025910412. The cubic root of 13885331 is about 240.3544011768.

The spelling of 13885331 in words is "thirteen million, eight hundred eighty-five thousand, three hundred thirty-one".