13285172 has 6 divisors (see below), whose sum is σ = 23249058. Its totient is φ = 6642584.

The previous prime is 13285169. The next prime is 13285187. The reversal of 13285172 is 27158231.

It can be written as a sum of positive squares in only one way, i.e., 10201636 + 3083536 = 3194^2 + 1756^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1660643 + ... + 1660650.

It is an arithmetic number, because the mean of its divisors is an integer number (3874843).

Almost surely, 2^13285172 is an apocalyptic number.

It is an amenable number.

13285172 is a deficient number, since it is larger than the sum of its proper divisors (9963886).

13285172 is a wasteful number, since it uses less digits than its factorization.

13285172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3321297 (or 3321295 counting only the distinct ones).

The product of its digits is 3360, while the sum is 29.

The square root of 13285172 is about 3644.8829885197. The cubic root of 13285172 is about 236.8403679734.

The spelling of 13285172 in words is "thirteen million, two hundred eighty-five thousand, one hundred seventy-two".