75115899 has 6 divisors (see below), whose sum is σ = 108500756. Its totient is φ = 50077260.

The previous prime is 75115891. The next prime is 75115919. The reversal of 75115899 is 99851157.

It is not a de Polignac number, because 75115899 - 2³ = 75115891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75115891) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4173097 + ... + 4173114.

Almost surely, 2^75115899 is an apocalyptic number.

75115899 is a deficient number, since it is larger than the sum of its proper divisors (33384857).

75115899 is a wasteful number, since it uses less digits than its factorization.

75115899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8346217 (or 8346214 counting only the distinct ones).

The product of its digits is 113400, while the sum is 45.

The square root of 75115899 is about 8666.9428866239. The cubic root of 75115899 is about 421.9334497452.

The spelling of 75115899 in words is "seventy-five million, one hundred fifteen thousand, eight hundred ninety-nine".