2318555 has 4 divisors (see below), whose sum is σ = 2782272. Its totient is φ = 1854840.

The previous prime is 2318543. The next prime is 2318567. The reversal of 2318555 is 5558132.

2318555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (2318543) and next prime (2318567).

It is a de Polignac number, because none of the positive numbers 2^k-2318555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231851 + ... + 231860.

It is an arithmetic number, because the mean of its divisors is an integer number (695568).

2^2318555 is an apocalyptic number.

2318555 is a deficient number, since it is larger than the sum of its proper divisors (463717).

2318555 is an equidigital number, since it uses as much as digits as its factorization.

2318555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463716.

The product of its digits is 6000, while the sum is 29.

The square root of 2318555 is about 1522.6802028003. The cubic root of 2318555 is about 132.3546287463.

The spelling of 2318555 in words is "two million, three hundred eighteen thousand, five hundred fifty-five".