651322319 has 2 divisors, whose sum is σ = 651322320. Its totient is φ = 651322318.

The previous prime is 651322291. The next prime is 651322327. The reversal of 651322319 is 913223156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 651322319 - 2¹² = 651318223 is a prime.

It is a super-2 number, since 2×651322319² = 848441526455075522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (651322379) 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, 325661159 + 325661160.

It is an arithmetic number, because the mean of its divisors is an integer number (325661160).

Almost surely, 2^651322319 is an apocalyptic number.

651322319 is a deficient number, since it is larger than the sum of its proper divisors (1).

651322319 is an equidigital number, since it uses as much as digits as its factorization.

651322319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 32.

The square root of 651322319 is about 25521.0172015145. The cubic root of 651322319 is about 866.8261148610.

The spelling of 651322319 in words is "six hundred fifty-one million, three hundred twenty-two thousand, three hundred nineteen".