212510653 has 2 divisors, whose sum is σ = 212510654. Its totient is φ = 212510652.

The previous prime is 212510633. The next prime is 212510671. The reversal of 212510653 is 356015212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131744484 + 80766169 = 11478^2 + 8987^2 .

It is a cyclic number.

It is not a de Polignac number, because 212510653 - 2⁹ = 212510141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212510603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106255326 + 106255327.

It is an arithmetic number, because the mean of its divisors is an integer number (106255327).

Almost surely, 2^212510653 is an apocalyptic number.

It is an amenable number.

212510653 is a deficient number, since it is larger than the sum of its proper divisors (1).

212510653 is an equidigital number, since it uses as much as digits as its factorization.

212510653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 212510653 is about 14577.7451274194. The cubic root of 212510653 is about 596.7515677001.

Adding to 212510653 its reverse (356015212), we get a palindrome (568525865).

The spelling of 212510653 in words is "two hundred twelve million, five hundred ten thousand, six hundred fifty-three".