641073201 has 4 divisors (see below), whose sum is σ = 854764272. Its totient is φ = 427382132.

The previous prime is 641073193. The next prime is 641073203. The reversal of 641073201 is 102370146.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 641073201 - 2³ = 641073193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (641073203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106845531 + ... + 106845536.

It is an arithmetic number, because the mean of its divisors is an integer number (213691068).

Almost surely, 2^641073201 is an apocalyptic number.

It is an amenable number.

641073201 is a deficient number, since it is larger than the sum of its proper divisors (213691071).

641073201 is a wasteful number, since it uses less digits than its factorization.

641073201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213691070.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 641073201 is about 25319.4233939085. The cubic root of 641073201 is about 862.2553031533.

The spelling of 641073201 in words is "six hundred forty-one million, seventy-three thousand, two hundred one".