11153972 has 24 divisors (see below), whose sum is σ = 21014280. Its totient is φ = 5160960.

The previous prime is 11153971. The next prime is 11153981. The reversal of 11153972 is 27935111.

It can be written as a sum of positive squares in 4 ways, for example, as 38416 + 11115556 = 196^2 + 3334^2 .

It is a super-2 number, since 2×11153972² = 248822182753568, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11153971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2804 + ... + 5492.

It is an arithmetic number, because the mean of its divisors is an integer number (875595).

Almost surely, 2^11153972 is an apocalyptic number.

It is an amenable number.

11153972 is a deficient number, since it is larger than the sum of its proper divisors (9860308).

11153972 is a wasteful number, since it uses less digits than its factorization.

11153972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2771 (or 2769 counting only the distinct ones).

The product of its digits is 1890, while the sum is 29.

The square root of 11153972 is about 3339.7562785329. The cubic root of 11153972 is about 223.4308734599.

The spelling of 11153972 in words is "eleven million, one hundred fifty-three thousand, nine hundred seventy-two".