651411841 has 2 divisors, whose sum is σ = 651411842. Its totient is φ = 651411840.

The previous prime is 651411821. The next prime is 651411851. The reversal of 651411841 is 148114156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 436642816 + 214769025 = 20896^2 + 14655^2 .

It is a cyclic number.

It is not a de Polignac number, because 651411841 - 2⁵ = 651411809 is a prime.

It is not a weakly prime, because it can be changed into another prime (651411811) 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, 325705920 + 325705921.

It is an arithmetic number, because the mean of its divisors is an integer number (325705921).

Almost surely, 2^651411841 is an apocalyptic number.

It is an amenable number.

651411841 is a deficient number, since it is larger than the sum of its proper divisors (1).

651411841 is an equidigital number, since it uses as much as digits as its factorization.

651411841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 31.

The square root of 651411841 is about 25522.7710290243. The cubic root of 651411841 is about 866.8658271254.

Adding to 651411841 its reverse (148114156), we get a palindrome (799525997).

The spelling of 651411841 in words is "six hundred fifty-one million, four hundred eleven thousand, eight hundred forty-one".