11157072 has 20 divisors (see below), whose sum is σ = 28822560. Its totient is φ = 3719008.

The previous prime is 11157071. The next prime is 11157073. The reversal of 11157072 is 27075111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11157071) and next prime (11157073).

It is a super-2 number, since 2×11157072² = 248960511226368, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11157071) 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, 116172 + ... + 116267.

It is an arithmetic number, because the mean of its divisors is an integer number (1441128).

Almost surely, 2^11157072 is an apocalyptic number.

11157072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11157072 is an abundant number, since it is smaller than the sum of its proper divisors (17665488).

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

11157072 is a wasteful number, since it uses less digits than its factorization.

11157072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232450 (or 232444 counting only the distinct ones).

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 11157072 is about 3340.2203520127. The cubic root of 11157072 is about 223.4515707669.

The spelling of 11157072 in words is "eleven million, one hundred fifty-seven thousand, seventy-two".