113757991 has 2 divisors, whose sum is σ = 113757992. Its totient is φ = 113757990.

The previous prime is 113757983. The next prime is 113758019. The reversal of 113757991 is 199757311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113757991 - 2³ = 113757983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113757971) 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 as a sum of consecutive naturals, namely, 56878995 + 56878996.

It is an arithmetic number, because the mean of its divisors is an integer number (56878996).

Almost surely, 2^113757991 is an apocalyptic number.

113757991 is a deficient number, since it is larger than the sum of its proper divisors (1).

113757991 is an equidigital number, since it uses as much as digits as its factorization.

113757991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 59535, while the sum is 43.

The square root of 113757991 is about 10665.7391211299. The cubic root of 113757991 is about 484.5373999798.

The spelling of 113757991 in words is "one hundred thirteen million, seven hundred fifty-seven thousand, nine hundred ninety-one".