115481369 has 2 divisors, whose sum is σ = 115481370. Its totient is φ = 115481368.

The previous prime is 115481363. The next prime is 115481371. The reversal of 115481369 is 963184511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99760144 + 15721225 = 9988^2 + 3965^2 .

It is a cyclic number.

It is not a de Polignac number, because 115481369 - 2²⁰ = 114432793 is a prime.

It is a super-2 number, since 2×115481369² = 26671893172228322, which contains 22 as substring.

Together with 115481371, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (115481363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57740684 + 57740685.

It is an arithmetic number, because the mean of its divisors is an integer number (57740685).

Almost surely, 2^115481369 is an apocalyptic number.

It is an amenable number.

115481369 is a deficient number, since it is larger than the sum of its proper divisors (1).

115481369 is an equidigital number, since it uses as much as digits as its factorization.

115481369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 38.

The square root of 115481369 is about 10746.2258025783. The cubic root of 115481369 is about 486.9719817979.

The spelling of 115481369 in words is "one hundred fifteen million, four hundred eighty-one thousand, three hundred sixty-nine".