111852972 has 72 divisors (see below), whose sum is σ = 352515072. Its totient is φ = 29052000.

The previous prime is 111852947. The next prime is 111852973. The reversal of 111852972 is 279258111.

It is a happy number.

It is a super-2 number, since 2×111852972² = 25022174690465568, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (111852973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17404 + ... + 22947.

Almost surely, 2^111852972 is an apocalyptic number.

111852972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111852972 is an abundant number, since it is smaller than the sum of its proper divisors (240662100).

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

111852972 is a wasteful number, since it uses less digits than its factorization.

111852972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40379 (or 40374 counting only the distinct ones).

The product of its digits is 10080, while the sum is 36.

The square root of 111852972 is about 10576.0565429653. The cubic root of 111852972 is about 481.8174328521.

The spelling of 111852972 in words is "one hundred eleven million, eight hundred fifty-two thousand, nine hundred seventy-two".