115560161 has 4 divisors (see below), whose sum is σ = 116078592. Its totient is φ = 115041732.

The previous prime is 115560143. The next prime is 115560163. The reversal of 115560161 is 161065511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161065511 = 577 ⋅279143.

It is a cyclic number.

It is not a de Polignac number, because 115560161 - 2¹⁴ = 115543777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115560161.

It is not an unprimeable number, because it can be changed into a prime (115560163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258881 + ... + 259326.

It is an arithmetic number, because the mean of its divisors is an integer number (29019648).

Almost surely, 2^115560161 is an apocalyptic number.

It is an amenable number.

115560161 is a deficient number, since it is larger than the sum of its proper divisors (518431).

115560161 is an equidigital number, since it uses as much as digits as its factorization.

115560161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518430.

The product of its (nonzero) digits is 900, while the sum is 26.

The square root of 115560161 is about 10749.8912087518. The cubic root of 115560161 is about 487.0827089615.

It can be divided in two parts, 1155 and 60161, that added together give a palindrome (61316).

The spelling of 115560161 in words is "one hundred fifteen million, five hundred sixty thousand, one hundred sixty-one".