11157272 has 32 divisors (see below), whose sum is σ = 24683520. Its totient is φ = 4626720.

The previous prime is 11157259. The next prime is 11157319. The reversal of 11157272 is 27275111.

11157272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 1478 + ... + 4949.

It is an arithmetic number, because the mean of its divisors is an integer number (771360).

Almost surely, 2^11157272 is an apocalyptic number.

It is an amenable number.

11157272 is an abundant number, since it is smaller than the sum of its proper divisors (13526248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11157272 is a wasteful number, since it uses less digits than its factorization.

11157272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6471 (or 6467 counting only the distinct ones).

The product of its digits is 980, while the sum is 26.

The square root of 11157272 is about 3340.2502900232. The cubic root of 11157272 is about 223.4529059454.

The spelling of 11157272 in words is "eleven million, one hundred fifty-seven thousand, two hundred seventy-two".