645141302227 has 2 divisors, whose sum is σ = 645141302228. Its totient is φ = 645141302226.

The previous prime is 645141302161. The next prime is 645141302231. The reversal of 645141302227 is 722203141546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 645141302227 - 2³⁹ = 95385488339 is a prime.

It is not a weakly prime, because it can be changed into another prime (645141302027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 322570651113 + 322570651114.

It is an arithmetic number, because the mean of its divisors is an integer number (322570651114).

Almost surely, 2^645141302227 is an apocalyptic number.

645141302227 is a deficient number, since it is larger than the sum of its proper divisors (1).

645141302227 is an equidigital number, since it uses as much as digits as its factorization.

645141302227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 645141302227 in words is "six hundred forty-five billion, one hundred forty-one million, three hundred two thousand, two hundred twenty-seven".