2591213 has 2 divisors, whose sum is σ = 2591214. Its totient is φ = 2591212.

The previous prime is 2591209. The next prime is 2591233. The reversal of 2591213 is 3121952.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2550409 + 40804 = 1597^2 + 202^2 .

It is a cyclic number.

It is not a de Polignac number, because 2591213 - 2² = 2591209 is a prime.

It is a super-2 number, since 2×2591213² = 13428769622738, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2591233) 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, 1295606 + 1295607.

It is an arithmetic number, because the mean of its divisors is an integer number (1295607).

2^2591213 is an apocalyptic number.

It is an amenable number.

2591213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2591213 is an equidigital number, since it uses as much as digits as its factorization.

2591213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 23.

The square root of 2591213 is about 1609.7245105918. The cubic root of 2591213 is about 137.3518050740.

The spelling of 2591213 in words is "two million, five hundred ninety-one thousand, two hundred thirteen".