115800687025 has 9 divisors (see below), whose sum is σ = 143594961771. Its totient is φ = 92639188440.

The previous prime is 115800687011. The next prime is 115800687049. The reversal of 115800687025 is 520786008511.

The square root of 115800687025 is 340295.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 41688247329 + 74112439696 = 204177^2 + 272236^2 .

It is not a de Polignac number, because 115800687025 - 2¹⁵ = 115800654257 is a prime.

It is a Duffinian 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 8 ways as a sum of consecutive naturals, for example, 1667446 + ... + 1735504.

Almost surely, 2^115800687025 is an apocalyptic number.

115800687025 is the 340295-th square number.

115800687025 is the 170148-th centered octagonal number.

It is an amenable number.

115800687025 is a deficient number, since it is larger than the sum of its proper divisors (27794274746).

115800687025 is an frugal number, since it uses more digits than its factorization.

115800687025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136128 (or 68064 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 43.

The spelling of 115800687025 in words is "one hundred fifteen billion, eight hundred million, six hundred eighty-seven thousand, twenty-five".