115715019 has 24 divisors (see below), whose sum is σ = 182020608. Its totient is φ = 65185680.

The previous prime is 115715009. The next prime is 115715027. The reversal of 115715019 is 910517511.

It is not a de Polignac number, because 115715019 - 2⁷ = 115714891 is a prime.

It is a super-2 number, since 2×115715019² = 26779931244340722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115715009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4894 + ... + 15980.

It is an arithmetic number, because the mean of its divisors is an integer number (7584192).

Almost surely, 2^115715019 is an apocalyptic number.

115715019 is a deficient number, since it is larger than the sum of its proper divisors (66305589).

115715019 is a wasteful number, since it uses less digits than its factorization.

115715019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11175 (or 11168 counting only the distinct ones).

The product of its (nonzero) digits is 1575, while the sum is 30.

The square root of 115715019 is about 10757.0915678914. The cubic root of 115715019 is about 487.3001858309.

The spelling of 115715019 in words is "one hundred fifteen million, seven hundred fifteen thousand, nineteen".