115617730 has 16 divisors (see below), whose sum is σ = 210174264. Its totient is φ = 45788800.

The previous prime is 115617727. The next prime is 115617739. The reversal of 115617730 is 37716511.

It can be written as a sum of positive squares in 4 ways, for example, as 115541001 + 76729 = 10749^2 + 277^2 .

It is a junction number, because it is equal to n+sod(n) for n = 115617692 and 115617701.

It is not an unprimeable number, because it can be changed into a prime (115617739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56227 + ... + 58246.

Almost surely, 2^115617730 is an apocalyptic number.

115617730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115617730 is a deficient number, since it is larger than the sum of its proper divisors (94556534).

115617730 is a wasteful number, since it uses less digits than its factorization.

115617730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114581.

The product of its (nonzero) digits is 4410, while the sum is 31.

The square root of 115617730 is about 10752.5685303559. The cubic root of 115617730 is about 487.1635794193.

It can be divided in two parts, 11561 and 7730, that added together give a palindrome (19291).

The spelling of 115617730 in words is "one hundred fifteen million, six hundred seventeen thousand, seven hundred thirty".