118493155 has 16 divisors (see below), whose sum is σ = 155714400. Its totient is φ = 85845760.

The previous prime is 118493149. The next prime is 118493209. The reversal of 118493155 is 551394811.

It is not a de Polignac number, because 118493155 - 2³ = 118493147 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 10791 + ... + 18799.

It is an arithmetic number, because the mean of its divisors is an integer number (9732150).

Almost surely, 2^118493155 is an apocalyptic number.

118493155 is a deficient number, since it is larger than the sum of its proper divisors (37221245).

118493155 is a wasteful number, since it uses less digits than its factorization.

118493155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8294.

The product of its digits is 21600, while the sum is 37.

The square root of 118493155 is about 10885.4561227355. The cubic root of 118493155 is about 491.1691573184.

The spelling of 118493155 in words is "one hundred eighteen million, four hundred ninety-three thousand, one hundred fifty-five".