13395531 has 4 divisors (see below), whose sum is σ = 17860712. Its totient is φ = 8930352.

The previous prime is 13395523. The next prime is 13395533. The reversal of 13395531 is 13559331.

13395531 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 not a de Polignac number, because 13395531 - 2³ = 13395523 is a prime.

It is a super-2 number, since 2×13395531² = 358880501543922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13395533) 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, 2232586 + ... + 2232591.

It is an arithmetic number, because the mean of its divisors is an integer number (4465178).

Almost surely, 2^13395531 is an apocalyptic number.

13395531 is a deficient number, since it is larger than the sum of its proper divisors (4465181).

13395531 is an equidigital number, since it uses as much as digits as its factorization.

13395531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4465180.

The product of its digits is 6075, while the sum is 30.

The square root of 13395531 is about 3659.9905737584. The cubic root of 13395531 is about 237.4943658867.

The spelling of 13395531 in words is "thirteen million, three hundred ninety-five thousand, five hundred thirty-one".