641001373 has 2 divisors, whose sum is σ = 641001374. Its totient is φ = 641001372.

The previous prime is 641001349. The next prime is 641001377. The reversal of 641001373 is 373100146.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 616379929 + 24621444 = 24827^2 + 4962^2 .

It is a cyclic number.

It is not a de Polignac number, because 641001373 - 2⁵ = 641001341 is a prime.

It is equal to p_33350029 and since 641001373 and 33350029 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (641001377) 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, 320500686 + 320500687.

It is an arithmetic number, because the mean of its divisors is an integer number (320500687).

Almost surely, 2^641001373 is an apocalyptic number.

It is an amenable number.

641001373 is a deficient number, since it is larger than the sum of its proper divisors (1).

641001373 is an equidigital number, since it uses as much as digits as its factorization.

641001373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 641001373 is about 25318.0049174496. The cubic root of 641001373 is about 862.2230986213.

The spelling of 641001373 in words is "six hundred forty-one million, one thousand, three hundred seventy-three".