118988617 has 6 divisors (see below), whose sum is σ = 130789274. Its totient is φ = 108171360.

The previous prime is 118988609. The next prime is 118988671. The reversal of 118988617 is 716889811.

It can be written as a sum of positive squares in only one way, i.e., 118831801 + 156816 = 10901^2 + 396^2 .

It is not a de Polignac number, because 118988617 - 2³ = 118988609 is a prime.

It is a super-3 number, since 3×118988617³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (118988677) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 491568 + ... + 491809.

Almost surely, 2^118988617 is an apocalyptic number.

It is an amenable number.

118988617 is a deficient number, since it is larger than the sum of its proper divisors (11800657).

118988617 is an equidigital number, since it uses as much as digits as its factorization.

118988617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 983399 (or 983388 counting only the distinct ones).

The product of its digits is 193536, while the sum is 49.

The square root of 118988617 is about 10908.1903632087. The cubic root of 118988617 is about 491.8527896437.

The spelling of 118988617 in words is "one hundred eighteen million, nine hundred eighty-eight thousand, six hundred seventeen".