641013573 has 16 divisors (see below), whose sum is σ = 865920896. Its totient is φ = 421761600.

The previous prime is 641013563. The next prime is 641013587. The reversal of 641013573 is 375310146.

It is not a de Polignac number, because 641013573 - 2¹⁶ = 640948037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 641013573.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641013533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66615 + ... + 75627.

It is an arithmetic number, because the mean of its divisors is an integer number (54120056).

Almost surely, 2^641013573 is an apocalyptic number.

It is an amenable number.

641013573 is a deficient number, since it is larger than the sum of its proper divisors (224907323).

641013573 is a wasteful number, since it uses less digits than its factorization.

641013573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9324.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 641013573 is about 25318.2458515593. The cubic root of 641013573 is about 862.2285687370.

The spelling of 641013573 in words is "six hundred forty-one million, thirteen thousand, five hundred seventy-three".