115575398 has 4 divisors (see below), whose sum is σ = 173363100. Its totient is φ = 57787698.

The previous prime is 115575389. The next prime is 115575407. The reversal of 115575398 is 893575511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 893575511 = 107 ⋅8351173.

It is an interprime number because it is at equal distance from previous prime (115575389) and next prime (115575407).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28893848 + ... + 28893851.

It is an arithmetic number, because the mean of its divisors is an integer number (43340775).

Almost surely, 2^115575398 is an apocalyptic number.

115575398 is a deficient number, since it is larger than the sum of its proper divisors (57787702).

115575398 is an equidigital number, since it uses as much as digits as its factorization.

115575398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57787701.

The product of its digits is 189000, while the sum is 44.

The square root of 115575398 is about 10750.5998902387. The cubic root of 115575398 is about 487.1041158576.

The spelling of 115575398 in words is "one hundred fifteen million, five hundred seventy-five thousand, three hundred ninety-eight".