115625000 has 72 divisors (see below), whose sum is σ = 278320170. Its totient is φ = 45000000.

The previous prime is 115624987. The next prime is 115625011. The reversal of 115625000 is 526511.

It can be written as a sum of positive squares in 9 ways, for example, as 115304644 + 320356 = 10738^2 + 566^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 3124982 + ... + 3125018.

Almost surely, 2^115625000 is an apocalyptic number.

115625000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115625000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139160085).

115625000 is an abundant number, since it is smaller than the sum of its proper divisors (162695170).

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

115625000 is an frugal number, since it uses more digits than its factorization.

115625000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 44 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 115625000 is about 10752.9065838033. The cubic root of 115625000 is about 487.1737900937.

The spelling of 115625000 in words is "one hundred fifteen million, six hundred twenty-five thousand".