641258 has 8 divisors (see below), whose sum is σ = 973728. Its totient is φ = 316684.

The previous prime is 641239. The next prime is 641261. The reversal of 641258 is 852146.

641258 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.

It is a super-2 number, since 2×641258² = 822423645128, which contains 22 as substring.

It is a Curzon 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, 1766 + ... + 2097.

It is an arithmetic number, because the mean of its divisors is an integer number (121716).

2⁶⁴¹²⁵⁸ is an apocalyptic number.

641258 is a deficient number, since it is larger than the sum of its proper divisors (332470).

641258 is a wasteful number, since it uses less digits than its factorization.

641258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3948.

The product of its digits is 1920, while the sum is 26.

The square root of 641258 is about 800.7858640111. The cubic root of 641258 is about 86.2338147883.

The spelling of 641258 in words is "six hundred forty-one thousand, two hundred fifty-eight".