113407839 has 12 divisors (see below), whose sum is σ = 164074456. Its totient is φ = 75483792.

The previous prime is 113407829. The next prime is 113407873. The reversal of 113407839 is 938704311.

It is a happy number.

It is not a de Polignac number, because 113407839 - 2⁷ = 113407711 is a prime.

It is a super-2 number, since 2×113407839² = 25722675893299842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113407829) 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 11 ways as a sum of consecutive naturals, for example, 4012 + ... + 15585.

Almost surely, 2^113407839 is an apocalyptic number.

113407839 is a deficient number, since it is larger than the sum of its proper divisors (50666617).

113407839 is a wasteful number, since it uses less digits than its factorization.

113407839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20246 (or 20243 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 113407839 is about 10649.3116678967. The cubic root of 113407839 is about 484.0397466960.

The spelling of 113407839 in words is "one hundred thirteen million, four hundred seven thousand, eight hundred thirty-nine".