2218013 has 4 divisors (see below), whose sum is σ = 2534880. Its totient is φ = 1901148.

The previous prime is 2218001. The next prime is 2218037. The reversal of 2218013 is 3108122.

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 2218013 - 2⁸ = 2217757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2217982 and 2218000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218063) 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, 158423 + ... + 158436.

It is an arithmetic number, because the mean of its divisors is an integer number (633720).

2^2218013 is an apocalyptic number.

It is an amenable number.

2218013 is a deficient number, since it is larger than the sum of its proper divisors (316867).

2218013 is an equidigital number, since it uses as much as digits as its factorization.

2218013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316866.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2218013 is about 1489.2994997649. The cubic root of 2218013 is about 130.4131432234.

The spelling of 2218013 in words is "two million, two hundred eighteen thousand, thirteen".