113863957 has 4 divisors (see below), whose sum is σ = 116512000. Its totient is φ = 111215916.

The previous prime is 113863949. The next prime is 113863963. The reversal of 113863957 is 759368311.

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, and also an emirpimes, since its reverse is a distinct semiprime: 759368311 = 13 ⋅58412947.

It is a cyclic number.

It is not a de Polignac number, because 113863957 - 2³ = 113863949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 2647999 = 113863957 / (1 + 1 + 3 + 8 + 6 + 3 + 9 + 5 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113863927) 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, 1323957 + ... + 1324042.

It is an arithmetic number, because the mean of its divisors is an integer number (29128000).

Almost surely, 2^113863957 is an apocalyptic number.

It is an amenable number.

113863957 is a deficient number, since it is larger than the sum of its proper divisors (2648043).

113863957 is an equidigital number, since it uses as much as digits as its factorization.

113863957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2648042.

The product of its digits is 136080, while the sum is 43.

The square root of 113863957 is about 10670.7055530551. The cubic root of 113863957 is about 484.6878027644.

The spelling of 113863957 in words is "one hundred thirteen million, eight hundred sixty-three thousand, nine hundred fifty-seven".