645341159 has 2 divisors, whose sum is σ = 645341160. Its totient is φ = 645341158.

The previous prime is 645341141. The next prime is 645341219. The reversal of 645341159 is 951143546.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-645341159 is a prime.

It is a super-2 number, since 2×645341159² = 832930422998926562, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (645344159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 322670579 + 322670580.

It is an arithmetic number, because the mean of its divisors is an integer number (322670580).

Almost surely, 2^645341159 is an apocalyptic number.

645341159 is a deficient number, since it is larger than the sum of its proper divisors (1).

645341159 is an equidigital number, since it uses as much as digits as its factorization.

645341159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 38.

The square root of 645341159 is about 25403.5658717433. The cubic root of 645341159 is about 864.1645665432.

The spelling of 645341159 in words is "six hundred forty-five million, three hundred forty-one thousand, one hundred fifty-nine".