115541365 has 16 divisors (see below), whose sum is σ = 143783280. Its totient is φ = 89026560.

The previous prime is 115541359. The next prime is 115541441. The reversal of 115541365 is 563145511.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 8191044 + 107350321 = 2862^2 + 10361^2 .

It is not a de Polignac number, because 115541365 - 2¹⁵ = 115508597 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82975 + ... + 84355.

It is an arithmetic number, because the mean of its divisors is an integer number (8986455).

Almost surely, 2^115541365 is an apocalyptic number.

It is an amenable number.

115541365 is a deficient number, since it is larger than the sum of its proper divisors (28241915).

115541365 is a wasteful number, since it uses less digits than its factorization.

115541365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1992.

The product of its digits is 9000, while the sum is 31.

The square root of 115541365 is about 10749.0169317943. The cubic root of 115541365 is about 487.0562993323.

Adding to 115541365 its reverse (563145511), we get a palindrome (678686876).

The spelling of 115541365 in words is "one hundred fifteen million, five hundred forty-one thousand, three hundred sixty-five".