112172879 has 16 divisors (see below), whose sum is σ = 141001728. Its totient is φ = 86860512.

The previous prime is 112172869. The next prime is 112172891. The reversal of 112172879 is 978271211.

It is a de Polignac number, because none of the positive numbers 2^k-112172879 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112172869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8837 + ... + 17390.

It is an arithmetic number, because the mean of its divisors is an integer number (8812608).

Almost surely, 2^112172879 is an apocalyptic number.

112172879 is a deficient number, since it is larger than the sum of its proper divisors (28828849).

112172879 is a wasteful number, since it uses less digits than its factorization.

112172879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26294.

The product of its digits is 14112, while the sum is 38.

The square root of 112172879 is about 10591.1698598408. The cubic root of 112172879 is about 482.2763390174.

The spelling of 112172879 in words is "one hundred twelve million, one hundred seventy-two thousand, eight hundred seventy-nine".