64095221 has 2 divisors, whose sum is σ = 64095222. Its totient is φ = 64095220.

The previous prime is 64095209. The next prime is 64095223. The reversal of 64095221 is 12259046.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63123025 + 972196 = 7945^2 + 986^2 .

It is a cyclic number.

It is not a de Polignac number, because 64095221 - 2¹⁰ = 64094197 is a prime.

Together with 64095223, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64095223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32047610 + 32047611.

It is an arithmetic number, because the mean of its divisors is an integer number (32047611).

Almost surely, 2^64095221 is an apocalyptic number.

It is an amenable number.

64095221 is a deficient number, since it is larger than the sum of its proper divisors (1).

64095221 is an equidigital number, since it uses as much as digits as its factorization.

64095221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 64095221 is about 8005.9491005127. The cubic root of 64095221 is about 400.1982787809.

The spelling of 64095221 in words is "sixty-four million, ninety-five thousand, two hundred twenty-one".