112172165 has 32 divisors (see below), whose sum is σ = 159726336. Its totient is φ = 74027520.

The previous prime is 112172149. The next prime is 112172183. The reversal of 112172165 is 561271211.

It is not a de Polignac number, because 112172165 - 2⁴ = 112172149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109355 + ... + 110375.

It is an arithmetic number, because the mean of its divisors is an integer number (4991448).

Almost surely, 2^112172165 is an apocalyptic number.

It is an amenable number.

112172165 is a deficient number, since it is larger than the sum of its proper divisors (47554171).

112172165 is a wasteful number, since it uses less digits than its factorization.

112172165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149.

The product of its digits is 840, while the sum is 26.

The square root of 112172165 is about 10591.1361524626. The cubic root of 112172165 is about 482.2753157575.

The spelling of 112172165 in words is "one hundred twelve million, one hundred seventy-two thousand, one hundred sixty-five".