115540560 has 160 divisors (see below), whose sum is σ = 401760000. Its totient is φ = 30518784.

The previous prime is 115540547. The next prime is 115540567. The reversal of 115540560 is 65045511.

It is a happy number.

115540560 is a `hidden beast` number, since 11 + 55 + 40 + 560 = 666.

It is a super-2 number, since 2×115540560² = 26699242010227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115540567) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 321661 + ... + 322019.

It is an arithmetic number, because the mean of its divisors is an integer number (2511000).

Almost surely, 2^115540560 is an apocalyptic number.

115540560 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 115540560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200880000).

115540560 is an abundant number, since it is smaller than the sum of its proper divisors (286219440).

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

115540560 is a wasteful number, since it uses less digits than its factorization.

115540560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 115540560 is about 10748.9794864443. The cubic root of 115540560 is about 487.0551681898.

The spelling of 115540560 in words is "one hundred fifteen million, five hundred forty thousand, five hundred sixty".