2147213 has 2 divisors, whose sum is σ = 2147214. Its totient is φ = 2147212.

The previous prime is 2147177. The next prime is 2147231. The reversal of 2147213 is 3127412.

Together with next prime (2147231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1857769 + 289444 = 1363^2 + 538^2 .

It is a cyclic number.

It is not a de Polignac number, because 2147213 - 2¹⁸ = 1885069 is a prime.

It is a super-2 number, since 2×2147213² = 9221047334738, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2147263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073606 + 1073607.

It is an arithmetic number, because the mean of its divisors is an integer number (1073607).

2^2147213 is an apocalyptic number.

It is an amenable number.

2147213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2147213 is an equidigital number, since it uses as much as digits as its factorization.

2147213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 336, while the sum is 20.

The square root of 2147213 is about 1465.3371625670. The cubic root of 2147213 is about 129.0104953102.

The spelling of 2147213 in words is "two million, one hundred forty-seven thousand, two hundred thirteen".