641012 has 6 divisors (see below), whose sum is σ = 1121778. Its totient is φ = 320504.

The previous prime is 640993. The next prime is 641051. The reversal of 641012 is 210146.

It can be written as a sum of positive squares in only one way, i.e., 633616 + 7396 = 796^2 + 86^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80123 + ... + 80130.

It is an arithmetic number, because the mean of its divisors is an integer number (186963).

2⁶⁴¹⁰¹² is an apocalyptic number.

It is an amenable number.

641012 is a deficient number, since it is larger than the sum of its proper divisors (480766).

641012 is a wasteful number, since it uses less digits than its factorization.

641012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160257 (or 160255 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 641012 is about 800.6322501623. The cubic root of 641012 is about 86.2227863455. Note that the first 3 decimals are identical.

Adding to 641012 its reverse (210146), we get a palindrome (851158).

The spelling of 641012 in words is "six hundred forty-one thousand, twelve".