115475397 has 4 divisors (see below), whose sum is σ = 153967200. Its totient is φ = 76983596.

The previous prime is 115475389. The next prime is 115475411. The reversal of 115475397 is 793574511.

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: 793574511 = 3 ⋅264524837.

It is a cyclic number.

It is not a de Polignac number, because 115475397 - 2³ = 115475389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115475317) 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, 19245897 + ... + 19245902.

It is an arithmetic number, because the mean of its divisors is an integer number (38491800).

Almost surely, 2^115475397 is an apocalyptic number.

It is an amenable number.

115475397 is a deficient number, since it is larger than the sum of its proper divisors (38491803).

115475397 is an equidigital number, since it uses as much as digits as its factorization.

115475397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38491802.

The product of its digits is 132300, while the sum is 42.

The square root of 115475397 is about 10745.9479339889. The cubic root of 115475397 is about 486.9635872352.

The spelling of 115475397 in words is "one hundred fifteen million, four hundred seventy-five thousand, three hundred ninety-seven".