115579397 has 4 divisors (see below), whose sum is σ = 116247660. Its totient is φ = 114911136.

The previous prime is 115579381. The next prime is 115579411. The reversal of 115579397 is 793975511.

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

It can be written as a sum of positive squares in 2 ways, for example, as 66031876 + 49547521 = 8126^2 + 7039^2 .

It is a cyclic number.

It is not a de Polignac number, because 115579397 - 2⁴ = 115579381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115579327) 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 in 3 ways as a sum of consecutive naturals, for example, 333872 + ... + 334217.

It is an arithmetic number, because the mean of its divisors is an integer number (29061915).

Almost surely, 2^115579397 is an apocalyptic number.

It is an amenable number.

115579397 is a deficient number, since it is larger than the sum of its proper divisors (668263).

115579397 is an equidigital number, since it uses as much as digits as its factorization.

115579397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668262.

The product of its digits is 297675, while the sum is 47.

The square root of 115579397 is about 10750.7858782509. The cubic root of 115579397 is about 487.1097338551.

The spelling of 115579397 in words is "one hundred fifteen million, five hundred seventy-nine thousand, three hundred ninety-seven".