118813161 has 8 divisors (see below), whose sum is σ = 159871360. Its totient is φ = 78481872.

The previous prime is 118813157. The next prime is 118813217. The reversal of 118813161 is 161318811.

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

It is not a de Polignac number, because 118813161 - 2² = 118813157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118813151) 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, 181345 + ... + 181998.

It is an arithmetic number, because the mean of its divisors is an integer number (19983920).

Almost surely, 2^118813161 is an apocalyptic number.

It is an amenable number.

118813161 is a deficient number, since it is larger than the sum of its proper divisors (41058199).

118813161 is a wasteful number, since it uses less digits than its factorization.

118813161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363455.

The product of its digits is 1152, while the sum is 30.

The square root of 118813161 is about 10900.1449990356. The cubic root of 118813161 is about 491.6109150356.

The spelling of 118813161 in words is "one hundred eighteen million, eight hundred thirteen thousand, one hundred sixty-one".