115206172 has 24 divisors (see below), whose sum is σ = 210825216. Its totient is φ = 54981168.

The previous prime is 115206167. The next prime is 115206193. The reversal of 115206172 is 271602511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54813 + ... + 56875.

It is an arithmetic number, because the mean of its divisors is an integer number (8784384).

Almost surely, 2^115206172 is an apocalyptic number.

It is an amenable number.

115206172 is a deficient number, since it is larger than the sum of its proper divisors (95619044).

115206172 is a wasteful number, since it uses less digits than its factorization.

115206172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697 (or 2695 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 115206172 is about 10733.4138092221. The cubic root of 115206172 is about 486.5848491552.

Adding to 115206172 its reverse (271602511), we get a palindrome (386808683).

The spelling of 115206172 in words is "one hundred fifteen million, two hundred six thousand, one hundred seventy-two".