651331223 has 2 divisors, whose sum is σ = 651331224. Its totient is φ = 651331222.

The previous prime is 651331199. The next prime is 651331249. The reversal of 651331223 is 322133156.

651331223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (651331249) can be obtained adding 651331223 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 651331223 - 2⁶ = 651331159 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 651331192 and 651331201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (651331283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325665611 + 325665612.

It is an arithmetic number, because the mean of its divisors is an integer number (325665612).

Almost surely, 2^651331223 is an apocalyptic number.

651331223 is a deficient number, since it is larger than the sum of its proper divisors (1).

651331223 is an equidigital number, since it uses as much as digits as its factorization.

651331223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 26.

The square root of 651331223 is about 25521.1916453758. The cubic root of 651331223 is about 866.8300648687.

Adding to 651331223 its reverse (322133156), we get a palindrome (973464379).

The spelling of 651331223 in words is "six hundred fifty-one million, three hundred thirty-one thousand, two hundred twenty-three".