115131319 has 4 divisors (see below), whose sum is σ = 115613280. Its totient is φ = 114649360.

The previous prime is 115131283. The next prime is 115131349. The reversal of 115131319 is 913131511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115131319 - 2¹⁷ = 115000247 is a prime.

It is a super-2 number, since 2×115131319² = 26510441229359522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115131293 and 115131302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115131349) 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 in 3 ways as a sum of consecutive naturals, for example, 240622 + ... + 241099.

It is an arithmetic number, because the mean of its divisors is an integer number (28903320).

Almost surely, 2^115131319 is an apocalyptic number.

115131319 is a deficient number, since it is larger than the sum of its proper divisors (481961).

115131319 is an equidigital number, since it uses as much as digits as its factorization.

115131319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481960.

The product of its digits is 405, while the sum is 25.

The square root of 115131319 is about 10729.9263277993. The cubic root of 115131319 is about 486.4794432666.

The spelling of 115131319 in words is "one hundred fifteen million, one hundred thirty-one thousand, three hundred nineteen".