118017172 has 24 divisors (see below), whose sum is σ = 254191616. Its totient is φ = 46687968.

The previous prime is 118017157. The next prime is 118017173. The reversal of 118017172 is 271710811.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 118017172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118017173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161748 + ... + 162475.

Almost surely, 2^118017172 is an apocalyptic number.

It is an amenable number.

118017172 is an abundant number, since it is smaller than the sum of its proper divisors (136174444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118017172 is a wasteful number, since it uses less digits than its factorization.

118017172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324247 (or 324245 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 28.

The square root of 118017172 is about 10863.5708678132. The cubic root of 118017172 is about 490.5106047654.

Adding to 118017172 its reverse (271710811), we get a palindrome (389727983).

The spelling of 118017172 in words is "one hundred eighteen million, seventeen thousand, one hundred seventy-two".