115216277 has 4 divisors (see below), whose sum is σ = 125690496. Its totient is φ = 104742060.

The previous prime is 115216271. The next prime is 115216289. The reversal of 115216277 is 772612511.

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: 772612511 = 11 ⋅70237501.

It is a cyclic number.

It is not a de Polignac number, because 115216277 - 2²⁰ = 114167701 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 (115216271) 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, 5237093 + ... + 5237114.

It is an arithmetic number, because the mean of its divisors is an integer number (31422624).

Almost surely, 2^115216277 is an apocalyptic number.

It is an amenable number.

115216277 is a deficient number, since it is larger than the sum of its proper divisors (10474219).

115216277 is a wasteful number, since it uses less digits than its factorization.

115216277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10474218.

The product of its digits is 5880, while the sum is 32.

The square root of 115216277 is about 10733.8845251847. The cubic root of 115216277 is about 486.5990752337.

Adding to 115216277 its reverse (772612511), we get a palindrome (887828788).

The spelling of 115216277 in words is "one hundred fifteen million, two hundred sixteen thousand, two hundred seventy-seven".