115522279 has 2 divisors, whose sum is σ = 115522280. Its totient is φ = 115522278.

The previous prime is 115522237. The next prime is 115522291. The reversal of 115522279 is 972225511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 115522279 - 2²³ = 107133671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115522579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57761139 + 57761140.

It is an arithmetic number, because the mean of its divisors is an integer number (57761140).

Almost surely, 2^115522279 is an apocalyptic number.

115522279 is a deficient number, since it is larger than the sum of its proper divisors (1).

115522279 is an equidigital number, since it uses as much as digits as its factorization.

115522279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 34.

The square root of 115522279 is about 10748.1290930096. The cubic root of 115522279 is about 487.0294793028.

It can be divided in two parts, 11552 and 2279, that added together give a palindrome (13831).

The spelling of 115522279 in words is "one hundred fifteen million, five hundred twenty-two thousand, two hundred seventy-nine".