641233 has 4 divisors (see below), whose sum is σ = 642928. Its totient is φ = 639540.

The previous prime is 641227. The next prime is 641239. The reversal of 641233 is 332146.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (641227) and next prime (641239).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-641233 is a prime.

It is a super-2 number, since 2×641233² = 822359520578, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 641233.

It is not an unprimeable number, because it can be changed into a prime (641239) 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, 10 + ... + 1132.

It is an arithmetic number, because the mean of its divisors is an integer number (160732).

2⁶⁴¹²³³ is an apocalyptic number.

It is an amenable number.

641233 is a deficient number, since it is larger than the sum of its proper divisors (1695).

641233 is a wasteful number, since it uses less digits than its factorization.

641233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694.

The product of its digits is 432, while the sum is 19.

The square root of 641233 is about 800.7702541928. The cubic root of 641233 is about 86.2326941404.

Adding to 641233 its reverse (332146), we get a palindrome (973379).

The spelling of 641233 in words is "six hundred forty-one thousand, two hundred thirty-three".