641542206 has 8 divisors (see below), whose sum is σ = 1283084424. Its totient is φ = 213847400.

The previous prime is 641542199. The next prime is 641542217. The reversal of 641542206 is 602245146.

641542206 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

641542206 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53461845 + ... + 53461856.

It is an arithmetic number, because the mean of its divisors is an integer number (160385553).

Almost surely, 2^641542206 is an apocalyptic number.

641542206 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641542206 is a wasteful number, since it uses less digits than its factorization.

641542206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106923706.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 641542206 is about 25328.6834636149. The cubic root of 641542206 is about 862.4655253601.

The spelling of 641542206 in words is "six hundred forty-one million, five hundred forty-two thousand, two hundred six".