64251227 has 2 divisors, whose sum is σ = 64251228. Its totient is φ = 64251226.

The previous prime is 64251157. The next prime is 64251233. The reversal of 64251227 is 72215246.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64251227 - 2¹⁰ = 64250203 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64251227.

It is not a weakly prime, because it can be changed into another prime (64251247) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32125613 + 32125614.

It is an arithmetic number, because the mean of its divisors is an integer number (32125614).

Almost surely, 2^64251227 is an apocalyptic number.

64251227 is a deficient number, since it is larger than the sum of its proper divisors (1).

64251227 is an equidigital number, since it uses as much as digits as its factorization.

64251227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 29.

The square root of 64251227 is about 8015.6863087324. The cubic root of 64251227 is about 400.5227062313.

The spelling of 64251227 in words is "sixty-four million, two hundred fifty-one thousand, two hundred twenty-seven".