115171289 has 2 divisors, whose sum is σ = 115171290. Its totient is φ = 115171288.

The previous prime is 115171283. The next prime is 115171307. The reversal of 115171289 is 982171511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112254025 + 2917264 = 10595^2 + 1708^2 .

It is a cyclic number.

It is not a de Polignac number, because 115171289 - 2²⁴ = 98394073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (115171283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57585644 + 57585645.

It is an arithmetic number, because the mean of its divisors is an integer number (57585645).

Almost surely, 2^115171289 is an apocalyptic number.

It is an amenable number.

115171289 is a deficient number, since it is larger than the sum of its proper divisors (1).

115171289 is an equidigital number, since it uses as much as digits as its factorization.

115171289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 35.

The square root of 115171289 is about 10731.7887139097. The cubic root of 115171289 is about 486.5357335786.

The spelling of 115171289 in words is "one hundred fifteen million, one hundred seventy-one thousand, two hundred eighty-nine".