115489172 has 6 divisors (see below), whose sum is σ = 202106058. Its totient is φ = 57744584.

The previous prime is 115489151. The next prime is 115489243. The reversal of 115489172 is 271984511.

It can be written as a sum of positive squares in only one way, i.e., 89946256 + 25542916 = 9484^2 + 5054^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14436143 + ... + 14436150.

It is an arithmetic number, because the mean of its divisors is an integer number (33684343).

Almost surely, 2^115489172 is an apocalyptic number.

It is an amenable number.

115489172 is a deficient number, since it is larger than the sum of its proper divisors (86616886).

115489172 is a wasteful number, since it uses less digits than its factorization.

115489172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28872297 (or 28872295 counting only the distinct ones).

The product of its digits is 20160, while the sum is 38.

The square root of 115489172 is about 10746.5888541434. The cubic root of 115489172 is about 486.9829496762.

The spelling of 115489172 in words is "one hundred fifteen million, four hundred eighty-nine thousand, one hundred seventy-two".