641305130 has 32 divisors (see below), whose sum is σ = 1219587840. Its totient is φ = 242401600.

The previous prime is 641305123. The next prime is 641305151. The reversal of 641305130 is 31503146.

It is a happy number.

It is a super-2 number, since 2×641305130² = 822544539528633800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 641305096 and 641305105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9896 + ... + 37155.

It is an arithmetic number, because the mean of its divisors is an integer number (38112120).

Almost surely, 2^641305130 is an apocalyptic number.

641305130 is a deficient number, since it is larger than the sum of its proper divisors (578282710).

641305130 is a wasteful number, since it uses less digits than its factorization.

641305130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47134.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 641305130 is about 25324.0030405937. The cubic root of 641305130 is about 862.3592735465.

Adding to 641305130 its reverse (31503146), we get a palindrome (672808276).

The spelling of 641305130 in words is "six hundred forty-one million, three hundred five thousand, one hundred thirty".