641195 has 4 divisors (see below), whose sum is σ = 769440. Its totient is φ = 512952.

The previous prime is 641167. The next prime is 641197. The reversal of 641195 is 591146.

641195 is digitally balanced in base 2, 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 641195 - 2⁶ = 641131 is a prime.

It is a super-2 number, since 2×641195² = 822262056050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (641197) 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, 64115 + ... + 64124.

It is an arithmetic number, because the mean of its divisors is an integer number (192360).

2⁶⁴¹¹⁹⁵ is an apocalyptic number.

641195 is a deficient number, since it is larger than the sum of its proper divisors (128245).

641195 is a wasteful number, since it uses less digits than its factorization.

641195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128244.

The product of its digits is 1080, while the sum is 26.

The square root of 641195 is about 800.7465266862. The cubic root of 641195 is about 86.2309906997.

The spelling of 641195 in words is "six hundred forty-one thousand, one hundred ninety-five".