112871640 has 64 divisors (see below), whose sum is σ = 386991360. Its totient is φ = 25799040.

The previous prime is 112871599. The next prime is 112871659. The reversal of 112871640 is 46178211.

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 = 112871598 and 112871607.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 66346 + ... + 68025.

It is an arithmetic number, because the mean of its divisors is an integer number (6046740).

Almost surely, 2^112871640 is an apocalyptic number.

112871640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112871640 is an abundant number, since it is smaller than the sum of its proper divisors (274119720).

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

112871640 is a wasteful number, since it uses less digits than its factorization.

112871640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134392 (or 134388 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 112871640 is about 10624.1065506705. The cubic root of 112871640 is about 483.2756850256.

The spelling of 112871640 in words is "one hundred twelve million, eight hundred seventy-one thousand, six hundred forty".