2318315 has 4 divisors (see below), whose sum is σ = 2781984. Its totient is φ = 1854648.

The previous prime is 2318311. The next prime is 2318317. The reversal of 2318315 is 5138132.

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 2318315 - 2² = 2318311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2318311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231827 + ... + 231836.

It is an arithmetic number, because the mean of its divisors is an integer number (695496).

2^2318315 is an apocalyptic number.

2318315 is a deficient number, since it is larger than the sum of its proper divisors (463669).

2318315 is an equidigital number, since it uses as much as digits as its factorization.

2318315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463668.

The product of its digits is 720, while the sum is 23.

The square root of 2318315 is about 1522.6013923545. The cubic root of 2318315 is about 132.3500617916.

The spelling of 2318315 in words is "two million, three hundred eighteen thousand, three hundred fifteen".