115271977 has 4 divisors (see below), whose sum is σ = 116660880. Its totient is φ = 113883076.

The previous prime is 115271971. The next prime is 115272023. The reversal of 115271977 is 779172511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 779172511 = 13 ⋅59936347.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115271977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115271971) 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, 694327 + ... + 694492.

It is an arithmetic number, because the mean of its divisors is an integer number (29165220).

Almost surely, 2^115271977 is an apocalyptic number.

It is an amenable number.

115271977 is a deficient number, since it is larger than the sum of its proper divisors (1388903).

115271977 is an equidigital number, since it uses as much as digits as its factorization.

115271977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1388902.

The product of its digits is 30870, while the sum is 40.

The square root of 115271977 is about 10736.4787989359. The cubic root of 115271977 is about 486.6774761991.

The spelling of 115271977 in words is "one hundred fifteen million, two hundred seventy-one thousand, nine hundred seventy-seven".