115242877 has 4 divisors (see below), whose sum is σ = 115653276. Its totient is φ = 114832480.

The previous prime is 115242863. The next prime is 115242913. The reversal of 115242877 is 778242511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 778242511 = 263 ⋅2959097.

It can be written as a sum of positive squares in 2 ways, for example, as 39012516 + 76230361 = 6246^2 + 8731^2 .

It is a cyclic number.

It is not a de Polignac number, because 115242877 - 2¹⁹ = 114718589 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 (115242817) 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, 204778 + ... + 205339.

It is an arithmetic number, because the mean of its divisors is an integer number (28913319).

Almost surely, 2^115242877 is an apocalyptic number.

It is an amenable number.

115242877 is a deficient number, since it is larger than the sum of its proper divisors (410399).

115242877 is an equidigital number, since it uses as much as digits as its factorization.

115242877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410398.

The product of its digits is 31360, while the sum is 37.

The square root of 115242877 is about 10735.1235204817. The cubic root of 115242877 is about 486.6365194207.

The spelling of 115242877 in words is "one hundred fifteen million, two hundred forty-two thousand, eight hundred seventy-seven".