13180885 has 16 divisors (see below), whose sum is σ = 16374960. Its totient is φ = 10178560.

The previous prime is 13180873. The next prime is 13180891. The reversal of 13180885 is 58808131.

It can be written as a sum of positive squares in 8 ways, for example, as 7606564 + 5574321 = 2758^2 + 2361^2 .

It is not a de Polignac number, because 13180885 - 2⁷ = 13180757 is a prime.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 13180885.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22881 + ... + 23449.

It is an arithmetic number, because the mean of its divisors is an integer number (1023435).

Almost surely, 2^13180885 is an apocalyptic number.

It is an amenable number.

13180885 is a deficient number, since it is larger than the sum of its proper divisors (3194075).

13180885 is a wasteful number, since it uses less digits than its factorization.

13180885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728.

The product of its (nonzero) digits is 7680, while the sum is 34.

The square root of 13180885 is about 3630.5488565780. The cubic root of 13180885 is about 236.2190164942.

The spelling of 13180885 in words is "thirteen million, one hundred eighty thousand, eight hundred eighty-five".