115428899 has 16 divisors (see below), whose sum is σ = 121945824. Its totient is φ = 109132800.

The previous prime is 115428877. The next prime is 115428919. The reversal of 115428899 is 998824511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115428899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115428809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410639 + ... + 410919.

It is an arithmetic number, because the mean of its divisors is an integer number (7621614).

Almost surely, 2^115428899 is an apocalyptic number.

115428899 is a deficient number, since it is larger than the sum of its proper divisors (6516925).

115428899 is a wasteful number, since it uses less digits than its factorization.

115428899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598.

The product of its digits is 207360, while the sum is 47.

The square root of 115428899 is about 10743.7842029706. The cubic root of 115428899 is about 486.8982172565.

The spelling of 115428899 in words is "one hundred fifteen million, four hundred twenty-eight thousand, eight hundred ninety-nine".