113779919 has 16 divisors (see below), whose sum is σ = 130546944. Its totient is φ = 98155200.

The previous prime is 113779901. The next prime is 113779931. The reversal of 113779919 is 919977311.

It is not a de Polignac number, because 113779919 - 2⁸ = 113779663 is a prime.

It is a super-2 number, since 2×113779919² = 25891739935293122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113779949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31427 + ... + 34859.

It is an arithmetic number, because the mean of its divisors is an integer number (8159184).

Almost surely, 2^113779919 is an apocalyptic number.

113779919 is a deficient number, since it is larger than the sum of its proper divisors (16767025).

113779919 is a wasteful number, since it uses less digits than its factorization.

113779919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3598.

The product of its digits is 107163, while the sum is 47.

The square root of 113779919 is about 10666.7670359861. The cubic root of 113779919 is about 484.5685311364.

The spelling of 113779919 in words is "one hundred thirteen million, seven hundred seventy-nine thousand, nine hundred nineteen".