13311285 has 48 divisors (see below), whose sum is σ = 23716800. Its totient is φ = 6369792.

The previous prime is 13311281. The next prime is 13311301. The reversal of 13311285 is 58211331.

It is not a de Polignac number, because 13311285 - 2² = 13311281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13311281) 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 47 ways as a sum of consecutive naturals, for example, 149521 + ... + 149609.

It is an arithmetic number, because the mean of its divisors is an integer number (494100).

Almost surely, 2^13311285 is an apocalyptic number.

13311285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13311285 is a deficient number, since it is larger than the sum of its proper divisors (10405515).

13311285 is a wasteful number, since it uses less digits than its factorization.

13311285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182 (or 169 counting only the distinct ones).

The product of its digits is 720, while the sum is 24.

The square root of 13311285 is about 3648.4633751759. The cubic root of 13311285 is about 236.9954422382.

It can be divided in two parts, 13311 and 285, that multiplied together give a triangular number (3793635 = T₂₇₅₄).

The spelling of 13311285 in words is "thirteen million, three hundred eleven thousand, two hundred eighty-five".