113587839 has 20 divisors (see below), whose sum is σ = 169968216. Its totient is φ = 75596976.

The previous prime is 113587783. The next prime is 113587843. The reversal of 113587839 is 938785311.

It is not a de Polignac number, because 113587839 - 2¹³ = 113579647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113587794 and 113587803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113587739) 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 19 ways as a sum of consecutive naturals, for example, 87892 + ... + 89174.

Almost surely, 2^113587839 is an apocalyptic number.

113587839 is a deficient number, since it is larger than the sum of its proper divisors (56380377).

113587839 is a wasteful number, since it uses less digits than its factorization.

113587839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2388 (or 2379 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 113587839 is about 10657.7595675639. The cubic root of 113587839 is about 484.2956993119.

The spelling of 113587839 in words is "one hundred thirteen million, five hundred eighty-seven thousand, eight hundred thirty-nine".