112156639 has 24 divisors (see below), whose sum is σ = 139987440. Its totient is φ = 89316864.

The previous prime is 112156637. The next prime is 112156687. The reversal of 112156639 is 936651211.

It is not a de Polignac number, because 112156639 - 2¹ = 112156637 is a prime.

It is a super-2 number, since 2×112156639² = 25158223343552642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112156637) 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, 48207 + ... + 50479.

It is an arithmetic number, because the mean of its divisors is an integer number (5832810).

Almost surely, 2^112156639 is an apocalyptic number.

112156639 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

112156639 is a deficient number, since it is larger than the sum of its proper divisors (27830801).

112156639 is a wasteful number, since it uses less digits than its factorization.

112156639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359 (or 2352 counting only the distinct ones).

The product of its digits is 9720, while the sum is 34.

The square root of 112156639 is about 10590.4031556877. The cubic root of 112156639 is about 482.2530637961.

The spelling of 112156639 in words is "one hundred twelve million, one hundred fifty-six thousand, six hundred thirty-nine".