118342857 has 4 divisors (see below), whose sum is σ = 157790480. Its totient is φ = 78895236.

The previous prime is 118342853. The next prime is 118342859. The reversal of 118342857 is 758243811.

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 not a de Polignac number, because 118342857 - 2² = 118342853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118342853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19723807 + ... + 19723812.

It is an arithmetic number, because the mean of its divisors is an integer number (39447620).

Almost surely, 2^118342857 is an apocalyptic number.

It is an amenable number.

118342857 is a deficient number, since it is larger than the sum of its proper divisors (39447623).

118342857 is an equidigital number, since it uses as much as digits as its factorization.

118342857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39447622.

The product of its digits is 53760, while the sum is 39.

The square root of 118342857 is about 10878.5503170229. The cubic root of 118342857 is about 490.9614013623.

The spelling of 118342857 in words is "one hundred eighteen million, three hundred forty-two thousand, eight hundred fifty-seven".