113139993 has 16 divisors (see below), whose sum is σ = 154310400. Its totient is φ = 73713360.

The previous prime is 113139941. The next prime is 113139997. The reversal of 113139993 is 399931311.

It is not a de Polignac number, because 113139993 - 2¹⁰ = 113138969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113139997) 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, 29898 + ... + 33468.

It is an arithmetic number, because the mean of its divisors is an integer number (9644400).

Almost surely, 2^113139993 is an apocalyptic number.

It is an amenable number.

113139993 is a deficient number, since it is larger than the sum of its proper divisors (41170407).

113139993 is a wasteful number, since it uses less digits than its factorization.

113139993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3812.

The product of its digits is 19683, while the sum is 39.

The square root of 113139993 is about 10636.7284914113. The cubic root of 113139993 is about 483.6583788451.

The spelling of 113139993 in words is "one hundred thirteen million, one hundred thirty-nine thousand, nine hundred ninety-three".