118557385 has 8 divisors (see below), whose sum is σ = 142784136. Its totient is φ = 94502400.

The previous prime is 118557379. The next prime is 118557401. The reversal of 118557385 is 583755811.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1138489 + 117418896 = 1067^2 + 10836^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 118557385 - 2¹¹ = 118555337 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41416 + ... + 44185.

It is an arithmetic number, because the mean of its divisors is an integer number (17848017).

Almost surely, 2^118557385 is an apocalyptic number.

It is an amenable number.

118557385 is a deficient number, since it is larger than the sum of its proper divisors (24226751).

118557385 is an equidigital number, since it uses as much as digits as its factorization.

118557385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85883.

The product of its digits is 168000, while the sum is 43.

The square root of 118557385 is about 10888.4059898591. The cubic root of 118557385 is about 491.2578884536.

The spelling of 118557385 in words is "one hundred eighteen million, five hundred fifty-seven thousand, three hundred eighty-five".