112120139 has 2 divisors, whose sum is σ = 112120140. Its totient is φ = 112120138.

The previous prime is 112120111. The next prime is 112120157. The reversal of 112120139 is 931021211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112120139 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 112120139.

It is not a weakly prime, because it can be changed into another prime (112120109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56060069 + 56060070.

It is an arithmetic number, because the mean of its divisors is an integer number (56060070).

Almost surely, 2^112120139 is an apocalyptic number.

112120139 is a deficient number, since it is larger than the sum of its proper divisors (1).

112120139 is an equidigital number, since it uses as much as digits as its factorization.

112120139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 112120139 is about 10588.6797571746. The cubic root of 112120139 is about 482.2007436755.

The spelling of 112120139 in words is "one hundred twelve million, one hundred twenty thousand, one hundred thirty-nine".