115298990 has 16 divisors (see below), whose sum is σ = 211954752. Its totient is φ = 45138144.

The previous prime is 115298987. The next prime is 115299017. The reversal of 115298990 is 99892511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 122189 + ... + 123128.

It is an arithmetic number, because the mean of its divisors is an integer number (13247172).

Almost surely, 2^115298990 is an apocalyptic number.

115298990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115298990 is a deficient number, since it is larger than the sum of its proper divisors (96655762).

115298990 is a wasteful number, since it uses less digits than its factorization.

115298990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245371.

The product of its (nonzero) digits is 58320, while the sum is 44.

The square root of 115298990 is about 10737.7367261449. The cubic root of 115298990 is about 486.7154894619.

The spelling of 115298990 in words is "one hundred fifteen million, two hundred ninety-eight thousand, nine hundred ninety".