118709155 has 4 divisors (see below), whose sum is σ = 142450992. Its totient is φ = 94967320.

The previous prime is 118709119. The next prime is 118709177. The reversal of 118709155 is 551907811.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 118709155 - 2⁷ = 118709027 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11870911 + ... + 11870920.

It is an arithmetic number, because the mean of its divisors is an integer number (35612748).

Almost surely, 2^118709155 is an apocalyptic number.

118709155 is a deficient number, since it is larger than the sum of its proper divisors (23741837).

118709155 is an equidigital number, since it uses as much as digits as its factorization.

118709155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23741836.

The product of its (nonzero) digits is 12600, while the sum is 37.

The square root of 118709155 is about 10895.3731005413. The cubic root of 118709155 is about 491.4674252878.

It can be divided in two parts, 11870 and 9155, that added together give a square (21025 = 145²).

The spelling of 118709155 in words is "one hundred eighteen million, seven hundred nine thousand, one hundred fifty-five".