113923791 has 24 divisors (see below), whose sum is σ = 178813440. Its totient is φ = 69627600.

The previous prime is 113923781. The next prime is 113923801. The reversal of 113923791 is 197329311.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (113923781) and next prime (113923801).

It is not a de Polignac number, because 113923791 - 2⁹ = 113923279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113923781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5445 + ... + 16046.

It is an arithmetic number, because the mean of its divisors is an integer number (7450560).

Almost surely, 2^113923791 is an apocalyptic number.

113923791 is a deficient number, since it is larger than the sum of its proper divisors (64889649).

113923791 is a wasteful number, since it uses less digits than its factorization.

113923791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21547 (or 21544 counting only the distinct ones).

The product of its digits is 10206, while the sum is 36.

The square root of 113923791 is about 10673.5088419882. The cubic root of 113923791 is about 484.7726869027.

The spelling of 113923791 in words is "one hundred thirteen million, nine hundred twenty-three thousand, seven hundred ninety-one".