115523545 has 4 divisors (see below), whose sum is σ = 138628260. Its totient is φ = 92418832.

The previous prime is 115523531. The next prime is 115523563. The reversal of 115523545 is 545325511.

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 68079001 + 47444544 = 8251^2 + 6888^2 .

It is a cyclic number.

It is not a de Polignac number, because 115523545 - 2⁷ = 115523417 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11552350 + ... + 11552359.

It is an arithmetic number, because the mean of its divisors is an integer number (34657065).

Almost surely, 2^115523545 is an apocalyptic number.

It is an amenable number.

115523545 is a deficient number, since it is larger than the sum of its proper divisors (23104715).

115523545 is an equidigital number, since it uses as much as digits as its factorization.

115523545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23104714.

The product of its digits is 15000, while the sum is 31.

The square root of 115523545 is about 10748.1879868190. The cubic root of 115523545 is about 487.0312584029.

The spelling of 115523545 in words is "one hundred fifteen million, five hundred twenty-three thousand, five hundred forty-five".