641351267 has 2 divisors, whose sum is σ = 641351268. Its totient is φ = 641351266.

The previous prime is 641351203. The next prime is 641351273. The reversal of 641351267 is 762153146.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 641351267 - 2⁶ = 641351203 is a prime.

It is a super-2 number, since 2×641351267² = 822662895365010578, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (641351287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320675633 + 320675634.

It is an arithmetic number, because the mean of its divisors is an integer number (320675634).

Almost surely, 2^641351267 is an apocalyptic number.

641351267 is a deficient number, since it is larger than the sum of its proper divisors (1).

641351267 is an equidigital number, since it uses as much as digits as its factorization.

641351267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 641351267 is about 25324.9139583928. The cubic root of 641351267 is about 862.3799531023.

The spelling of 641351267 in words is "six hundred forty-one million, three hundred fifty-one thousand, two hundred sixty-seven".