111131164 has 12 divisors (see below), whose sum is σ = 194555088. Its totient is φ = 55544000.

The previous prime is 111131149. The next prime is 111131177. The reversal of 111131164 is 461131111.

It is a super-2 number, since 2×111131164² = 24700271223989792, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13689 + ... + 20239.

It is an arithmetic number, because the mean of its divisors is an integer number (16212924).

Almost surely, 2^111131164 is an apocalyptic number.

It is an amenable number.

111131164 is a deficient number, since it is larger than the sum of its proper divisors (83423924).

111131164 is a wasteful number, since it uses less digits than its factorization.

111131164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10796 (or 10794 counting only the distinct ones).

The product of its digits is 72, while the sum is 19.

The square root of 111131164 is about 10541.8766830200. The cubic root of 111131164 is about 480.7787762998.

Adding to 111131164 its reverse (461131111), we get a palindrome (572262275).

The spelling of 111131164 in words is "one hundred eleven million, one hundred thirty-one thousand, one hundred sixty-four".