112031890 has 16 divisors (see below), whose sum is σ = 202380120. Its totient is φ = 44652160.

The previous prime is 112031869. The next prime is 112031891. The reversal of 112031890 is 98130211.

It can be written as a sum of positive squares in 4 ways, for example, as 99620361 + 12411529 = 9981^2 + 3523^2 .

It is a super-2 number, since 2×112031890² = 25102288753944200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (112031891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17125 + ... + 22744.

Almost surely, 2^112031890 is an apocalyptic number.

112031890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

112031890 is a deficient number, since it is larger than the sum of its proper divisors (90348230).

112031890 is a wasteful number, since it uses less digits than its factorization.

112031890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40157.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 112031890 is about 10584.5117979055. The cubic root of 112031890 is about 482.0741981584.

The spelling of 112031890 in words is "one hundred twelve million, thirty-one thousand, eight hundred ninety".