13011272 has 32 divisors (see below), whose sum is σ = 25342200. Its totient is φ = 6257664.

The previous prime is 13011253. The next prime is 13011281. The reversal of 13011272 is 27211031.

It can be written as a sum of positive squares in 4 ways, for example, as 8491396 + 4519876 = 2914^2 + 2126^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13011272.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33254 + ... + 33642.

Almost surely, 2^13011272 is an apocalyptic number.

It is an amenable number.

13011272 is a deficient number, since it is larger than the sum of its proper divisors (12330928).

13011272 is a wasteful number, since it uses less digits than its factorization.

13011272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 13011272 is about 3607.1140819220. The cubic root of 13011272 is about 235.2014087410.

The spelling of 13011272 in words is "thirteen million, eleven thousand, two hundred seventy-two".