112519139 has 4 divisors (see below), whose sum is σ = 112656024. Its totient is φ = 112382256.

The previous prime is 112519117. The next prime is 112519163. The reversal of 112519139 is 931915211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 112519139 - 2¹⁶ = 112453603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112519439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67202 + ... + 68855.

It is an arithmetic number, because the mean of its divisors is an integer number (28164006).

Almost surely, 2^112519139 is an apocalyptic number.

112519139 is a deficient number, since it is larger than the sum of its proper divisors (136885).

112519139 is an equidigital number, since it uses as much as digits as its factorization.

112519139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136884.

The product of its digits is 2430, while the sum is 32.

The square root of 112519139 is about 10607.5039005414. The cubic root of 112519139 is about 482.7720663081.

The spelling of 112519139 in words is "one hundred twelve million, five hundred nineteen thousand, one hundred thirty-nine".