651275213 has 2 divisors, whose sum is σ = 651275214. Its totient is φ = 651275212.

The previous prime is 651275203. The next prime is 651275227. The reversal of 651275213 is 312572156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 517016644 + 134258569 = 22738^2 + 11587^2 .

It is a cyclic number.

It is not a de Polignac number, because 651275213 - 2⁴ = 651275197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 651275213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (651275203) 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, 325637606 + 325637607.

It is an arithmetic number, because the mean of its divisors is an integer number (325637607).

Almost surely, 2^651275213 is an apocalyptic number.

It is an amenable number.

651275213 is a deficient number, since it is larger than the sum of its proper divisors (1).

651275213 is an equidigital number, since it uses as much as digits as its factorization.

651275213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 32.

The square root of 651275213 is about 25520.0942984151. The cubic root of 651275213 is about 866.8052170177.

The spelling of 651275213 in words is "six hundred fifty-one million, two hundred seventy-five thousand, two hundred thirteen".