112167891 has 12 divisors (see below), whose sum is σ = 176749560. Its totient is φ = 67980480.

The previous prime is 112167883. The next prime is 112167893. The reversal of 112167891 is 198761211.

It is not a de Polignac number, because 112167891 - 2³ = 112167883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (112167893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 566406 + ... + 566603.

It is an arithmetic number, because the mean of its divisors is an integer number (14729130).

Almost surely, 2^112167891 is an apocalyptic number.

112167891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

112167891 is a deficient number, since it is larger than the sum of its proper divisors (64581669).

112167891 is a wasteful number, since it uses less digits than its factorization.

112167891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133026 (or 1133023 counting only the distinct ones).

The product of its digits is 6048, while the sum is 36.

The square root of 112167891 is about 10590.9343780424. The cubic root of 112167891 is about 482.2691904385.

The spelling of 112167891 in words is "one hundred twelve million, one hundred sixty-seven thousand, eight hundred ninety-one".