115600090 has 16 divisors (see below), whose sum is σ = 215255880. Its totient is φ = 44645440.

The previous prime is 115600081. The next prime is 115600103. The reversal of 115600090 is 90006511.

It can be written as a sum of positive squares in 4 ways, for example, as 94614529 + 20985561 = 9727^2 + 4581^2 .

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, 199021 + ... + 199600.

Almost surely, 2^115600090 is an apocalyptic number.

115600090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115600090 is a deficient number, since it is larger than the sum of its proper divisors (99655790).

115600090 is a wasteful number, since it uses less digits than its factorization.

115600090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398657.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 115600090 is about 10751.7482299392. The cubic root of 115600090 is about 487.1388023583.

It can be divided in two parts, 1156000 and 90, that multiplied together give a square (104040000 = 10200²).

The spelling of 115600090 in words is "one hundred fifteen million, six hundred thousand, ninety".