118815345 has 36 divisors (see below), whose sum is σ = 226381428. Its totient is φ = 57604800.

The previous prime is 118815313. The next prime is 118815383. The reversal of 118815345 is 543518811.

118815345 is a `hidden beast` number, since 118 + 8 + 1 + 534 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 56610576 + 62204769 = 7524^2 + 7887^2 .

It is not a de Polignac number, because 118815345 - 2⁵ = 118815313 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5466 + ... + 16355.

It is an arithmetic number, because the mean of its divisors is an integer number (6288373).

Almost surely, 2^118815345 is an apocalyptic number.

118815345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118815345 is a deficient number, since it is larger than the sum of its proper divisors (107566083).

118815345 is a wasteful number, since it uses less digits than its factorization.

118815345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21854 (or 21840 counting only the distinct ones).

The product of its digits is 19200, while the sum is 36.

The square root of 118815345 is about 10900.2451807287. The cubic root of 118815345 is about 491.6139272486.

The spelling of 118815345 in words is "one hundred eighteen million, eight hundred fifteen thousand, three hundred forty-five".