118878885 has 24 divisors (see below), whose sum is σ = 211085784. Its totient is φ = 61854720.

The previous prime is 118878883. The next prime is 118878889. The reversal of 118878885 is 588878811.

It can be written as a sum of positive squares in 4 ways, for example, as 25281 + 118853604 = 159^2 + 10902^2 .

It is not a de Polignac number, because 118878885 - 2¹ = 118878883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118878883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30372 + ... + 34061.

It is an arithmetic number, because the mean of its divisors is an integer number (8795241).

Almost surely, 2^118878885 is an apocalyptic number.

118878885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118878885 is a deficient number, since it is larger than the sum of its proper divisors (92206899).

118878885 is a wasteful number, since it uses less digits than its factorization.

118878885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64485 (or 64482 counting only the distinct ones).

The product of its digits is 1146880, while the sum is 54.

The square root of 118878885 is about 10903.1594045029. The cubic root of 118878885 is about 491.7015466333.

The spelling of 118878885 in words is "one hundred eighteen million, eight hundred seventy-eight thousand, eight hundred eighty-five".