64641301 has 2 divisors, whose sum is σ = 64641302.
Its totient is φ = 64641300.
The previous prime is 64641299. The next prime is 64641307. The reversal of 64641301 is 10314646.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 43573201 + 21068100 = 6601^2 + 4590^2
It is a cyclic number.
It is not a de Polignac number, because 64641301 - 21 = 64641299 is a prime.
Together with 64641299, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (64641307) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32320650 + 32320651.
It is an arithmetic number, because the mean of its divisors is an integer number (32320651).
Almost surely, 264641301 is an apocalyptic number.
It is an amenable number.
64641301 is a deficient number, since it is larger than the sum of its proper divisors (1).
64641301 is an equidigital number, since it uses as much as digits as its factorization.
64641301 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1728, while the sum is 25.
The square root of 64641301 is about 8039.9814054511.
The cubic root of 64641301 is about 401.3316058952.
Adding to 64641301 its reverse (10314646), we get a palindrome (74955947).
The spelling of 64641301 in words is "sixty-four million, six hundred forty-one thousand, three hundred one".