112891290 has 16 divisors (see below), whose sum is σ = 270939168. Its totient is φ = 30104336.

The previous prime is 112891279. The next prime is 112891309. The reversal of 112891290 is 92198211.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1881492 + ... + 1881551.

It is an arithmetic number, because the mean of its divisors is an integer number (16933698).

Almost surely, 2^112891290 is an apocalyptic number.

112891290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

112891290 is an abundant number, since it is smaller than the sum of its proper divisors (158047878).

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

112891290 is a wasteful number, since it uses less digits than its factorization.

112891290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3763053.

The product of its (nonzero) digits is 2592, while the sum is 33.

The square root of 112891290 is about 10625.0312940716. The cubic root of 112891290 is about 483.3037281378.

The spelling of 112891290 in words is "one hundred twelve million, eight hundred ninety-one thousand, two hundred ninety".