112072139 has 4 divisors (see below), whose sum is σ = 112227024. Its totient is φ = 111917256.

The previous prime is 112072133. The next prime is 112072141. The reversal of 112072139 is 931270211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931270211 = 10733 ⋅86767.

It is a cyclic number.

It is not a de Polignac number, because 112072139 - 2¹² = 112068043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112072133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76352 + ... + 77805.

It is an arithmetic number, because the mean of its divisors is an integer number (28056756).

Almost surely, 2^112072139 is an apocalyptic number.

112072139 is a deficient number, since it is larger than the sum of its proper divisors (154885).

112072139 is an equidigital number, since it uses as much as digits as its factorization.

112072139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154884.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 112072139 is about 10586.4129430133. The cubic root of 112072139 is about 482.1319218454.

It can be divided in two parts, 112072 and 139, that added together give a palindrome (112211).

The spelling of 112072139 in words is "one hundred twelve million, seventy-two thousand, one hundred thirty-nine".