118881605 has 16 divisors (see below), whose sum is σ = 144451200. Its totient is φ = 93918528.

The previous prime is 118881599. The next prime is 118881667. The reversal of 118881605 is 506188811.

It is a cyclic number.

It is not a de Polignac number, because 118881605 - 2⁴ = 118881589 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161819 + ... + 162551.

It is an arithmetic number, because the mean of its divisors is an integer number (9028200).

Almost surely, 2^118881605 is an apocalyptic number.

It is an amenable number.

118881605 is a deficient number, since it is larger than the sum of its proper divisors (25569595).

118881605 is a wasteful number, since it uses less digits than its factorization.

118881605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100.

The product of its (nonzero) digits is 15360, while the sum is 38.

The square root of 118881605 is about 10903.2841382769. The cubic root of 118881605 is about 491.7052967190.

The spelling of 118881605 in words is "one hundred eighteen million, eight hundred eighty-one thousand, six hundred five".