2317213 has 4 divisors (see below), whose sum is σ = 2360988. Its totient is φ = 2273440.

The previous prime is 2317171. The next prime is 2317223. The reversal of 2317213 is 3127132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1633284 + 683929 = 1278^2 + 827^2 .

It is a cyclic number.

It is not a de Polignac number, because 2317213 - 2¹⁷ = 2186141 is a prime.

It is a Duffinian number.

2317213 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2317223) 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, 21808 + ... + 21913.

It is an arithmetic number, because the mean of its divisors is an integer number (590247).

2^2317213 is an apocalyptic number.

It is an amenable number.

2317213 is a deficient number, since it is larger than the sum of its proper divisors (43775).

2317213 is an equidigital number, since it uses as much as digits as its factorization.

2317213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43774.

The product of its digits is 252, while the sum is 19.

The square root of 2317213 is about 1522.2394686776. The cubic root of 2317213 is about 132.3290878107.

It can be divided in two parts, 2317 and 213, that multiplied together give a triangular number (493521 = T₉₉₃).

The spelling of 2317213 in words is "two million, three hundred seventeen thousand, two hundred thirteen".