64264121 has 2 divisors, whose sum is σ = 64264122. Its totient is φ = 64264120.

The previous prime is 64264091. The next prime is 64264133. The reversal of 64264121 is 12146246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55294096 + 8970025 = 7436^2 + 2995^2 .

It is a cyclic number.

It is not a de Polignac number, because 64264121 - 2¹⁰ = 64263097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (64264021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32132060 + 32132061.

It is an arithmetic number, because the mean of its divisors is an integer number (32132061).

Almost surely, 2^64264121 is an apocalyptic number.

It is an amenable number.

64264121 is a deficient number, since it is larger than the sum of its proper divisors (1).

64264121 is an equidigital number, since it uses as much as digits as its factorization.

64264121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 26.

The square root of 64264121 is about 8016.4905663264. The cubic root of 64264121 is about 400.5494968706.

The spelling of 64264121 in words is "sixty-four million, two hundred sixty-four thousand, one hundred twenty-one".