13018772 has 12 divisors (see below), whose sum is σ = 24535476. Its totient is φ = 6008640.

The previous prime is 13018757. The next prime is 13018777. The reversal of 13018772 is 27781031.

It can be written as a sum of positive squares in 2 ways, for example, as 8549776 + 4468996 = 2924^2 + 2114^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13018777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125129 + ... + 125232.

It is an arithmetic number, because the mean of its divisors is an integer number (2044623).

Almost surely, 2^13018772 is an apocalyptic number.

It is an amenable number.

13018772 is a deficient number, since it is larger than the sum of its proper divisors (11516704).

13018772 is a wasteful number, since it uses less digits than its factorization.

13018772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250378 (or 250376 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 13018772 is about 3608.1535444047. The cubic root of 13018772 is about 235.2465919159.

The spelling of 13018772 in words is "thirteen million, eighteen thousand, seven hundred seventy-two".