641501102 has 24 divisors (see below), whose sum is σ = 1059609936. Its totient is φ = 291060000.

The previous prime is 641501101. The next prime is 641501143. The reversal of 641501102 is 201105146.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641501101) 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, 150602 + ... + 154802.

It is an arithmetic number, because the mean of its divisors is an integer number (44150414).

Almost surely, 2^641501102 is an apocalyptic number.

641501102 is a deficient number, since it is larger than the sum of its proper divisors (418108834).

641501102 is a wasteful number, since it uses less digits than its factorization.

641501102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4856 (or 4845 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 641501102 is about 25327.8720385270. The cubic root of 641501102 is about 862.4471054028.

Adding to 641501102 its reverse (201105146), we get a palindrome (842606248).

The spelling of 641501102 in words is "six hundred forty-one million, five hundred one thousand, one hundred two".