115830172 has 12 divisors (see below), whose sum is σ = 202778856. Its totient is φ = 57893360.

The previous prime is 115830149. The next prime is 115830199. The reversal of 115830172 is 271038511.

It is a self number, because there is not a number n which added to its sum of digits gives 115830172.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15678 + ... + 21850.

It is an arithmetic number, because the mean of its divisors is an integer number (16898238).

Almost surely, 2^115830172 is an apocalyptic number.

It is an amenable number.

115830172 is a deficient number, since it is larger than the sum of its proper divisors (86948684).

115830172 is a wasteful number, since it uses less digits than its factorization.

115830172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10868 (or 10866 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 115830172 is about 10762.4426595453. The cubic root of 115830172 is about 487.4617767094.

Adding to 115830172 its reverse (271038511), we get a palindrome (386868683).

The spelling of 115830172 in words is "one hundred fifteen million, eight hundred thirty thousand, one hundred seventy-two".