113993457 has 4 divisors (see below), whose sum is σ = 151991280. Its totient is φ = 75995636.

The previous prime is 113993441. The next prime is 113993491. The reversal of 113993457 is 754399311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113993457 - 2⁴ = 113993441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113993357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18998907 + ... + 18998912.

It is an arithmetic number, because the mean of its divisors is an integer number (37997820).

Almost surely, 2^113993457 is an apocalyptic number.

It is an amenable number.

113993457 is a deficient number, since it is larger than the sum of its proper divisors (37997823).

113993457 is an equidigital number, since it uses as much as digits as its factorization.

113993457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37997822.

The product of its digits is 102060, while the sum is 42.

The square root of 113993457 is about 10676.7718435864. The cubic root of 113993457 is about 484.8714818720.

The spelling of 113993457 in words is "one hundred thirteen million, nine hundred ninety-three thousand, four hundred fifty-seven".