115597493 has 4 divisors (see below), whose sum is σ = 126106368. Its totient is φ = 105088620.

The previous prime is 115597477. The next prime is 115597511. The reversal of 115597493 is 394795511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 394795511 = 11 ⋅35890501.

It is a cyclic number.

It is not a de Polignac number, because 115597493 - 2⁴ = 115597477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115597423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5254421 + ... + 5254442.

It is an arithmetic number, because the mean of its divisors is an integer number (31526592).

Almost surely, 2^115597493 is an apocalyptic number.

It is an amenable number.

115597493 is a deficient number, since it is larger than the sum of its proper divisors (10508875).

115597493 is a wasteful number, since it uses less digits than its factorization.

115597493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10508874.

The product of its digits is 170100, while the sum is 44.

The square root of 115597493 is about 10751.6274582037. The cubic root of 115597493 is about 487.1351544115.

The spelling of 115597493 in words is "one hundred fifteen million, five hundred ninety-seven thousand, four hundred ninety-three".