112155140 has 24 divisors (see below), whose sum is σ = 241892952. Its totient is φ = 43649280.

The previous prime is 112155139. The next prime is 112155163. The reversal of 112155140 is 41551211.

It can be written as a sum of positive squares in 4 ways, for example, as 50438404 + 61716736 = 7102^2 + 7856^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75041 + ... + 76520.

It is an arithmetic number, because the mean of its divisors is an integer number (10078873).

Almost surely, 2^112155140 is an apocalyptic number.

112155140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112155140 is an abundant number, since it is smaller than the sum of its proper divisors (129737812).

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

112155140 is a wasteful number, since it uses less digits than its factorization.

112155140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151607 (or 151605 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 112155140 is about 10590.3323838301. The cubic root of 112155140 is about 482.2509153111.

The spelling of 112155140 in words is "one hundred twelve million, one hundred fifty-five thousand, one hundred forty".