641458583 has 2 divisors, whose sum is σ = 641458584. Its totient is φ = 641458582.

The previous prime is 641458567. The next prime is 641458607. The reversal of 641458583 is 385854146.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 641458583 - 2⁴ = 641458567 is a prime.

It is a super-2 number, since 2×641458583² = 822938227408735778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (641451583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320729291 + 320729292.

It is an arithmetic number, because the mean of its divisors is an integer number (320729292).

Almost surely, 2^641458583 is an apocalyptic number.

641458583 is a deficient number, since it is larger than the sum of its proper divisors (1).

641458583 is an equidigital number, since it uses as much as digits as its factorization.

641458583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 460800, while the sum is 44.

The square root of 641458583 is about 25327.0326528790. The cubic root of 641458583 is about 862.4280505129.

The spelling of 641458583 in words is "six hundred forty-one million, four hundred fifty-eight thousand, five hundred eighty-three".