612562213 has 2 divisors, whose sum is σ = 612562214. Its totient is φ = 612562212.

The previous prime is 612562189. The next prime is 612562229. The reversal of 612562213 is 312265216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 372374209 + 240188004 = 19297^2 + 15498^2 .

It is a cyclic number.

It is not a de Polignac number, because 612562213 - 2⁹ = 612561701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (612562253) 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, 306281106 + 306281107.

It is an arithmetic number, because the mean of its divisors is an integer number (306281107).

Almost surely, 2^612562213 is an apocalyptic number.

It is an amenable number.

612562213 is a deficient number, since it is larger than the sum of its proper divisors (1).

612562213 is an equidigital number, since it uses as much as digits as its factorization.

612562213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 612562213 is about 24749.9942020195. The cubic root of 612562213 is about 849.2783785444.

The spelling of 612562213 in words is "six hundred twelve million, five hundred sixty-two thousand, two hundred thirteen".