115497994 has 4 divisors (see below), whose sum is σ = 173246994. Its totient is φ = 57748996.

The previous prime is 115497989. The next prime is 115498007. The reversal of 115497994 is 499794511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 499794511 = 2417 ⋅206783.

It can be written as a sum of positive squares in only one way, i.e., 64561225 + 50936769 = 8035^2 + 7137^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28874497 + ... + 28874500.

Almost surely, 2^115497994 is an apocalyptic number.

115497994 is a deficient number, since it is larger than the sum of its proper divisors (57749000).

115497994 is an equidigital number, since it uses as much as digits as its factorization.

115497994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57748999.

The product of its digits is 408240, while the sum is 49.

The square root of 115497994 is about 10746.9993021308. Note that the first 3 decimals coincide. The cubic root of 115497994 is about 486.9953492635.

The spelling of 115497994 in words is "one hundred fifteen million, four hundred ninety-seven thousand, nine hundred ninety-four".