115605011 has 4 divisors (see below), whose sum is σ = 116487624. Its totient is φ = 114722400.

The previous prime is 115604977. The next prime is 115605019. The reversal of 115605011 is 110506511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115605011 - 2¹⁸ = 115342867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115605019) 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 3 ways as a sum of consecutive naturals, for example, 441110 + ... + 441371.

It is an arithmetic number, because the mean of its divisors is an integer number (29121906).

Almost surely, 2^115605011 is an apocalyptic number.

115605011 is a deficient number, since it is larger than the sum of its proper divisors (882613).

115605011 is an equidigital number, since it uses as much as digits as its factorization.

115605011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882612.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 115605011 is about 10751.9770740083. The cubic root of 115605011 is about 487.1457146252.

The spelling of 115605011 in words is "one hundred fifteen million, six hundred five thousand, eleven".