118057913 has 4 divisors (see below), whose sum is σ = 118497060. Its totient is φ = 117618768.

The previous prime is 118057909. The next prime is 118057921. The reversal of 118057913 is 319750811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20502784 + 97555129 = 4528^2 + 9877^2 .

It is a cyclic number.

It is not a de Polignac number, because 118057913 - 2² = 118057909 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118057943) 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, 219170 + ... + 219707.

It is an arithmetic number, because the mean of its divisors is an integer number (29624265).

Almost surely, 2^118057913 is an apocalyptic number.

It is an amenable number.

118057913 is a deficient number, since it is larger than the sum of its proper divisors (439147).

118057913 is an equidigital number, since it uses as much as digits as its factorization.

118057913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439146.

The product of its (nonzero) digits is 7560, while the sum is 35.

The square root of 118057913 is about 10865.4458261040. The cubic root of 118057913 is about 490.5670417316.

The spelling of 118057913 in words is "one hundred eighteen million, fifty-seven thousand, nine hundred thirteen".