112139940 has 48 divisors (see below), whose sum is σ = 342538560. Its totient is φ = 27185280.

The previous prime is 112139921. The next prime is 112139953. The reversal of 112139940 is 49931211.

It is a super-2 number, since 2×112139940² = 25150732286407200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 112139898 and 112139907.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84295 + ... + 85614.

It is an arithmetic number, because the mean of its divisors is an integer number (7136220).

Almost surely, 2^112139940 is an apocalyptic number.

112139940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112139940 is an abundant number, since it is smaller than the sum of its proper divisors (230398620).

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

112139940 is a wasteful number, since it uses less digits than its factorization.

112139940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169932 (or 169930 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 112139940 is about 10589.6147238698. The cubic root of 112139940 is about 482.2291283914.

The spelling of 112139940 in words is "one hundred twelve million, one hundred thirty-nine thousand, nine hundred forty".