651343241 has 2 divisors, whose sum is σ = 651343242. Its totient is φ = 651343240.

The previous prime is 651343223. The next prime is 651343289. The reversal of 651343241 is 142343156.

651343241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 361152016 + 290191225 = 19004^2 + 17035^2 .

It is a cyclic number.

It is not a de Polignac number, because 651343241 - 2²² = 647148937 is a prime.

It is not a weakly prime, because it can be changed into another prime (657343241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325671620 + 325671621.

It is an arithmetic number, because the mean of its divisors is an integer number (325671621).

Almost surely, 2^651343241 is an apocalyptic number.

It is an amenable number.

651343241 is a deficient number, since it is larger than the sum of its proper divisors (1).

651343241 is an equidigital number, since it uses as much as digits as its factorization.

651343241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 651343241 is about 25521.4270956779. The cubic root of 651343241 is about 866.8353962574.

Adding to 651343241 its reverse (142343156), we get a palindrome (793686397).

The spelling of 651343241 in words is "six hundred fifty-one million, three hundred forty-three thousand, two hundred forty-one".