115412999 has 4 divisors (see below), whose sum is σ = 124290936. Its totient is φ = 106535064.

The previous prime is 115412933. The next prime is 115413071. The reversal of 115412999 is 999214511.

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: 999214511 = 8233 ⋅121367.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115412999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115412299) 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, 4438949 + ... + 4438974.

It is an arithmetic number, because the mean of its divisors is an integer number (31072734).

Almost surely, 2^115412999 is an apocalyptic number.

115412999 is a deficient number, since it is larger than the sum of its proper divisors (8877937).

115412999 is an equidigital number, since it uses as much as digits as its factorization.

115412999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8877936.

The product of its digits is 29160, while the sum is 41.

The square root of 115412999 is about 10743.0442147466. The cubic root of 115412999 is about 486.8758599519.

The spelling of 115412999 in words is "one hundred fifteen million, four hundred twelve thousand, nine hundred ninety-nine".