641436101 has 2 divisors, whose sum is σ = 641436102. Its totient is φ = 641436100.

The previous prime is 641436073. The next prime is 641436113. The reversal of 641436101 is 101634146.

641436101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 636351076 + 5085025 = 25226^2 + 2255^2 .

It is a cyclic number.

It is not a de Polignac number, because 641436101 - 2¹⁰ = 641435077 is a prime.

It is a super-2 number, since 2×641436101² = 822880543332164402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (641436151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320718050 + 320718051.

It is an arithmetic number, because the mean of its divisors is an integer number (320718051).

Almost surely, 2^641436101 is an apocalyptic number.

It is an amenable number.

641436101 is a deficient number, since it is larger than the sum of its proper divisors (1).

641436101 is an equidigital number, since it uses as much as digits as its factorization.

641436101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 641436101 is about 25326.5888149194. The cubic root of 641436101 is about 862.4179748642.

The spelling of 641436101 in words is "six hundred forty-one million, four hundred thirty-six thousand, one hundred one".