641211 has 4 divisors (see below), whose sum is σ = 854952. Its totient is φ = 427472.

The previous prime is 641203. The next prime is 641213. The reversal of 641211 is 112146.

641211 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 641211 - 2³ = 641203 is a prime.

It is a super-2 number, since 2×641211² = 822303093042, which contains 22 as substring.

It is a D-number.

641211 is strictly pandigital in base 7.

It is not an unprimeable number, because it can be changed into a prime (641213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106866 + ... + 106871.

It is an arithmetic number, because the mean of its divisors is an integer number (213738).

2⁶⁴¹²¹¹ is an apocalyptic number.

641211 is a deficient number, since it is larger than the sum of its proper divisors (213741).

641211 is a wasteful number, since it uses less digits than its factorization.

641211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213740.

The product of its digits is 48, while the sum is 15.

The square root of 641211 is about 800.7565173010. The cubic root of 641211 is about 86.2317079461.

Adding to 641211 its reverse (112146), we get a palindrome (753357).

It can be divided in two parts, 64 and 1211, that added together give a triangular number (1275 = T₅₀).

The spelling of 641211 in words is "six hundred forty-one thousand, two hundred eleven".