2318257 has 4 divisors (see below), whose sum is σ = 2329456. Its totient is φ = 2307060.

The previous prime is 2318249. The next prime is 2318279. The reversal of 2318257 is 7528132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2318257 - 2³ = 2318249 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a zygodrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (2318237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5283 + ... + 5704.

It is an arithmetic number, because the mean of its divisors is an integer number (582364).

2^2318257 is an apocalyptic number.

It is an amenable number.

2318257 is a deficient number, since it is larger than the sum of its proper divisors (11199).

2318257 is a wasteful number, since it uses less digits than its factorization.

2318257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11198.

The product of its digits is 3360, while the sum is 28.

The square root of 2318257 is about 1522.5823458848. The cubic root of 2318257 is about 132.3489580636.

The spelling of 2318257 in words is "two million, three hundred eighteen thousand, two hundred fifty-seven".