115340561 has 24 divisors (see below), whose sum is σ = 142720704. Its totient is φ = 92732640.

The previous prime is 115340557. The next prime is 115340587. The reversal of 115340561 is 165043511.

It is not a de Polignac number, because 115340561 - 2² = 115340557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115340561.

It is not an unprimeable number, because it can be changed into a prime (115340501) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 58766 + ... + 60696.

It is an arithmetic number, because the mean of its divisors is an integer number (5946696).

Almost surely, 2^115340561 is an apocalyptic number.

It is an amenable number.

115340561 is a deficient number, since it is larger than the sum of its proper divisors (27380143).

115340561 is a wasteful number, since it uses less digits than its factorization.

115340561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021 (or 2014 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 115340561 is about 10739.6722948142. The cubic root of 115340561 is about 486.7739774515.

It can be divided in two parts, 1153 and 40561, that added together give a palindrome (41714).

The spelling of 115340561 in words is "one hundred fifteen million, three hundred forty thousand, five hundred sixty-one".