118215393 has 8 divisors (see below), whose sum is σ = 157712256. Its totient is φ = 78764400.

The previous prime is 118215379. The next prime is 118215401. The reversal of 118215393 is 393512811.

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

It is not a de Polignac number, because 118215393 - 2⁸ = 118215137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (118215313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4918 + ... + 16143.

It is an arithmetic number, because the mean of its divisors is an integer number (19714032).

Almost surely, 2^118215393 is an apocalyptic number.

It is an amenable number.

118215393 is a deficient number, since it is larger than the sum of its proper divisors (39496863).

118215393 is a wasteful number, since it uses less digits than its factorization.

118215393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22935.

The product of its digits is 6480, while the sum is 33.

The square root of 118215393 is about 10872.6902374711. The cubic root of 118215393 is about 490.7850708066.

The spelling of 118215393 in words is "one hundred eighteen million, two hundred fifteen thousand, three hundred ninety-three".