264665227 has 2 divisors, whose sum is σ = 264665228. Its totient is φ = 264665226.

The previous prime is 264665201. The next prime is 264665237. The reversal of 264665227 is 722566462.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264665227 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 264665227.

It is not a weakly prime, because it can be changed into another prime (264665237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132332613 + 132332614.

It is an arithmetic number, because the mean of its divisors is an integer number (132332614).

Almost surely, 2^264665227 is an apocalyptic number.

264665227 is a deficient number, since it is larger than the sum of its proper divisors (1).

264665227 is an equidigital number, since it uses as much as digits as its factorization.

264665227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 40.

The square root of 264665227 is about 16268.5348756426. The cubic root of 264665227 is about 642.0452368948.

The spelling of 264665227 in words is "two hundred sixty-four million, six hundred sixty-five thousand, two hundred twenty-seven".