13112272 has 20 divisors (see below), whose sum is σ = 25461540. Its totient is φ = 6541568.

The previous prime is 13112249. The next prime is 13112273. The reversal of 13112272 is 27221131.

It can be written as a sum of positive squares in 2 ways, for example, as 4562496 + 8549776 = 2136^2 + 2924^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13112273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12438 + ... + 13450.

It is an arithmetic number, because the mean of its divisors is an integer number (1273077).

Almost surely, 2^13112272 is an apocalyptic number.

It is an amenable number.

13112272 is a deficient number, since it is larger than the sum of its proper divisors (12349268).

13112272 is a wasteful number, since it uses less digits than its factorization.

13112272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1830 (or 1824 counting only the distinct ones).

The product of its digits is 168, while the sum is 19.

The square root of 13112272 is about 3621.0871295786. The cubic root of 13112272 is about 235.8084244385.

It can be divided in two parts, 131 and 12272, that added together give a triangular number (12403 = T₁₅₇).

The spelling of 13112272 in words is "thirteen million, one hundred twelve thousand, two hundred seventy-two".