118917249 has 16 divisors (see below), whose sum is σ = 173452224. Its totient is φ = 71870400.

The previous prime is 118917187. The next prime is 118917251. The reversal of 118917249 is 942719811.

It is not a de Polignac number, because 118917249 - 2⁹ = 118916737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 118917249.

It is not an unprimeable number, because it can be changed into a prime (118917289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7479 + ... + 17139.

It is an arithmetic number, because the mean of its divisors is an integer number (10840764).

Almost surely, 2^118917249 is an apocalyptic number.

It is an amenable number.

118917249 is a deficient number, since it is larger than the sum of its proper divisors (54534975).

118917249 is a wasteful number, since it uses less digits than its factorization.

118917249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10048.

The product of its digits is 36288, while the sum is 42.

The square root of 118917249 is about 10904.9185691595. The cubic root of 118917249 is about 491.7544341003.

The spelling of 118917249 in words is "one hundred eighteen million, nine hundred seventeen thousand, two hundred forty-nine".