113782139 has 16 divisors (see below), whose sum is σ = 122860800. Its totient is φ = 104991744.

The previous prime is 113782129. The next prime is 113782177. The reversal of 113782139 is 931287311.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 113782139 - 2²⁰ = 112733563 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113782099 and 113782108.

It is not an unprimeable number, because it can be changed into a prime (113782129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237302 + ... + 237780.

It is an arithmetic number, because the mean of its divisors is an integer number (7678800).

Almost surely, 2^113782139 is an apocalyptic number.

113782139 is a deficient number, since it is larger than the sum of its proper divisors (9078661).

113782139 is a wasteful number, since it uses less digits than its factorization.

113782139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742.

The product of its digits is 9072, while the sum is 35.

The square root of 113782139 is about 10666.8710969993. The cubic root of 113782139 is about 484.5716826449.

The spelling of 113782139 in words is "one hundred thirteen million, seven hundred eighty-two thousand, one hundred thirty-nine".