115555790 has 32 divisors (see below), whose sum is σ = 238209984. Its totient is φ = 39536640.

The previous prime is 115555763. The next prime is 115555793. The reversal of 115555790 is 97555511.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115555793) 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 15 ways as a sum of consecutive naturals, for example, 38960 + ... + 41820.

It is an arithmetic number, because the mean of its divisors is an integer number (7444062).

Almost surely, 2^115555790 is an apocalyptic number.

115555790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115555790 is an abundant number, since it is smaller than the sum of its proper divisors (122654194).

115555790 is a wasteful number, since it uses less digits than its factorization.

115555790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452.

The product of its (nonzero) digits is 39375, while the sum is 38.

The square root of 115555790 is about 10749.6879024463. The cubic root of 115555790 is about 487.0765676715.

The spelling of 115555790 in words is "one hundred fifteen million, five hundred fifty-five thousand, seven hundred ninety".