112891605 has 32 divisors (see below), whose sum is σ = 184654080. Its totient is φ = 58882560.

The previous prime is 112891601. The next prime is 112891609. The reversal of 112891605 is 506198211.

It is an interprime number because it is at equal distance from previous prime (112891601) and next prime (112891609).

It is not a de Polignac number, because 112891605 - 2² = 112891601 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112891601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137095 + ... + 137915.

It is an arithmetic number, because the mean of its divisors is an integer number (5770440).

Almost surely, 2^112891605 is an apocalyptic number.

112891605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

112891605 is a deficient number, since it is larger than the sum of its proper divisors (71762475).

112891605 is a wasteful number, since it uses less digits than its factorization.

112891605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021.

The product of its (nonzero) digits is 4320, while the sum is 33.

The square root of 112891605 is about 10625.0461175470. The cubic root of 112891605 is about 483.3041776573.

The spelling of 112891605 in words is "one hundred twelve million, eight hundred ninety-one thousand, six hundred five".