115775427 has 4 divisors (see below), whose sum is σ = 154367240. Its totient is φ = 77183616.

The previous prime is 115775381. The next prime is 115775441. The reversal of 115775427 is 724577511.

It is a happy number.

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

It is not a de Polignac number, because 115775427 - 2⁸ = 115775171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115775447) 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, 19295902 + ... + 19295907.

It is an arithmetic number, because the mean of its divisors is an integer number (38591810).

Almost surely, 2^115775427 is an apocalyptic number.

115775427 is a deficient number, since it is larger than the sum of its proper divisors (38591813).

115775427 is an equidigital number, since it uses as much as digits as its factorization.

115775427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38591812.

The product of its digits is 68600, while the sum is 39.

The square root of 115775427 is about 10759.8990236898. The cubic root of 115775427 is about 487.3849679936.

The spelling of 115775427 in words is "one hundred fifteen million, seven hundred seventy-five thousand, four hundred twenty-seven".