641575 has 12 divisors (see below), whose sum is σ = 868248. Its totient is φ = 466400.

The previous prime is 641551. The next prime is 641579. The reversal of 641575 is 575146.

641575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 641575 - 2¹³ = 633383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641579) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 892 + ... + 1441.

It is an arithmetic number, because the mean of its divisors is an integer number (72354).

2⁶⁴¹⁵⁷⁵ is an apocalyptic number.

641575 is a deficient number, since it is larger than the sum of its proper divisors (226673).

641575 is a wasteful number, since it uses less digits than its factorization.

641575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2354 (or 2349 counting only the distinct ones).

The product of its digits is 4200, while the sum is 28.

The square root of 641575 is about 800.9837701227. The cubic root of 641575 is about 86.2480220788.

The spelling of 641575 in words is "six hundred forty-one thousand, five hundred seventy-five".