641095 has 16 divisors (see below), whose sum is σ = 947520. Its totient is φ = 405504.

The previous prime is 641093. The next prime is 641101. The reversal of 641095 is 590146.

It is a cyclic number.

It is not a de Polignac number, because 641095 - 2¹ = 641093 is a prime.

It is a super-2 number, since 2×641095² = 822005598050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641093) 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, 250 + ... + 1159.

It is an arithmetic number, because the mean of its divisors is an integer number (59220).

2⁶⁴¹⁰⁹⁵ is an apocalyptic number.

641095 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

641095 is a deficient number, since it is larger than the sum of its proper divisors (306425).

641095 is a wasteful number, since it uses less digits than its factorization.

641095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 641095 is about 800.6840825194. The cubic root of 641095 is about 86.2265076395.

The spelling of 641095 in words is "six hundred forty-one thousand, ninety-five".