641474201 has 2 divisors, whose sum is σ = 641474202. Its totient is φ = 641474200.

The previous prime is 641474191. The next prime is 641474203. The reversal of 641474201 is 102474146.

It is a happy number.

641474201 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., 446899600 + 194574601 = 21140^2 + 13949^2 .

It is a cyclic number.

It is not a de Polignac number, because 641474201 - 2¹⁰ = 641473177 is a prime.

It is a super-2 number, since 2×641474201² = 822978301097176802, which contains 22 as substring.

Together with 641474203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (641474203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320737100 + 320737101.

It is an arithmetic number, because the mean of its divisors is an integer number (320737101).

Almost surely, 2^641474201 is an apocalyptic number.

It is an amenable number.

641474201 is a deficient number, since it is larger than the sum of its proper divisors (1).

641474201 is an equidigital number, since it uses as much as digits as its factorization.

641474201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 641474201 is about 25327.3409776865. The cubic root of 641474201 is about 862.4350498175.

The spelling of 641474201 in words is "six hundred forty-one million, four hundred seventy-four thousand, two hundred one".