112639791 has 16 divisors (see below), whose sum is σ = 166619520. Its totient is φ = 67108320.

The previous prime is 112639721. The next prime is 112639817. The reversal of 112639791 is 197936211.

It is a happy number.

It is not a de Polignac number, because 112639791 - 2¹⁵ = 112607023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112639711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26980 + ... + 30873.

It is an arithmetic number, because the mean of its divisors is an integer number (10413720).

Almost surely, 2^112639791 is an apocalyptic number.

112639791 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

112639791 is a deficient number, since it is larger than the sum of its proper divisors (53979729).

112639791 is a wasteful number, since it uses less digits than its factorization.

112639791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57926.

The product of its digits is 20412, while the sum is 39.

The square root of 112639791 is about 10613.1894829029. The cubic root of 112639791 is about 482.9445602473.

The spelling of 112639791 in words is "one hundred twelve million, six hundred thirty-nine thousand, seven hundred ninety-one".