641316101 has 4 divisors (see below), whose sum is σ = 675069600. Its totient is φ = 607562604.

The previous prime is 641316097. The next prime is 641316113. The reversal of 641316101 is 101613146.

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 a cyclic number.

It is not a de Polignac number, because 641316101 - 2² = 641316097 is a prime.

It is a super-2 number, since 2×641316101² = 822572682803684402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641316191) 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, 16876721 + ... + 16876758.

It is an arithmetic number, because the mean of its divisors is an integer number (168767400).

Almost surely, 2^641316101 is an apocalyptic number.

It is an amenable number.

641316101 is a deficient number, since it is larger than the sum of its proper divisors (33753499).

641316101 is a wasteful number, since it uses less digits than its factorization.

641316101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33753498.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 641316101 is about 25324.2196523407. The cubic root of 641316101 is about 862.3641910651.

Adding to 641316101 its reverse (101613146), we get a palindrome (742929247).

The spelling of 641316101 in words is "six hundred forty-one million, three hundred sixteen thousand, one hundred one".