2045213 has 2 divisors, whose sum is σ = 2045214. Its totient is φ = 2045212.

The previous prime is 2045191. The next prime is 2045311. The reversal of 2045213 is 3125402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1776889 + 268324 = 1333^2 + 518^2 .

It is a cyclic number.

It is not a de Polignac number, because 2045213 - 2¹⁸ = 1783069 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2045191 and 2045200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2045713) 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 as a sum of consecutive naturals, namely, 1022606 + 1022607.

It is an arithmetic number, because the mean of its divisors is an integer number (1022607).

2^2045213 is an apocalyptic number.

It is an amenable number.

2045213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045213 is an equidigital number, since it uses as much as digits as its factorization.

2045213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2045213 is about 1430.1094363719. The cubic root of 2045213 is about 126.9344527112.

The spelling of 2045213 in words is "two million, forty-five thousand, two hundred thirteen".