115442165 has 4 divisors (see below), whose sum is σ = 138530604. Its totient is φ = 92353728.

The previous prime is 115442161. The next prime is 115442191. The reversal of 115442165 is 561244511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73942801 + 41499364 = 8599^2 + 6442^2 .

It is a cyclic number.

It is not a de Polignac number, because 115442165 - 2² = 115442161 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115442161) 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, 11544212 + ... + 11544221.

It is an arithmetic number, because the mean of its divisors is an integer number (34632651).

Almost surely, 2^115442165 is an apocalyptic number.

It is an amenable number.

115442165 is a deficient number, since it is larger than the sum of its proper divisors (23088439).

115442165 is an equidigital number, since it uses as much as digits as its factorization.

115442165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23088438.

The product of its digits is 4800, while the sum is 29.

The square root of 115442165 is about 10744.4015654665. The cubic root of 115442165 is about 486.9168692705.

Adding to 115442165 its reverse (561244511), we get a palindrome (676686676).

The spelling of 115442165 in words is "one hundred fifteen million, four hundred forty-two thousand, one hundred sixty-five".