115213277 has 2 divisors, whose sum is σ = 115213278. Its totient is φ = 115213276.

The previous prime is 115213247. The next prime is 115213289. The reversal of 115213277 is 772312511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78659161 + 36554116 = 8869^2 + 6046^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115213277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115213247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57606638 + 57606639.

It is an arithmetic number, because the mean of its divisors is an integer number (57606639).

Almost surely, 2^115213277 is an apocalyptic number.

It is an amenable number.

115213277 is a deficient number, since it is larger than the sum of its proper divisors (1).

115213277 is an equidigital number, since it uses as much as digits as its factorization.

115213277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2940, while the sum is 29.

The square root of 115213277 is about 10733.7447798986. The cubic root of 115213277 is about 486.5948518435.

Adding to 115213277 its reverse (772312511), we get a palindrome (887525788).

The spelling of 115213277 in words is "one hundred fifteen million, two hundred thirteen thousand, two hundred seventy-seven".