264297457 has 2 divisors, whose sum is σ = 264297458. Its totient is φ = 264297456.

The previous prime is 264297443. The next prime is 264297469. The reversal of 264297457 is 754792462.

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., 195888016 + 68409441 = 13996^2 + 8271^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264297457 is a prime.

It is not a weakly prime, because it can be changed into another prime (264297437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132148728 + 132148729.

It is an arithmetic number, because the mean of its divisors is an integer number (132148729).

Almost surely, 2^264297457 is an apocalyptic number.

It is an amenable number.

264297457 is a deficient number, since it is larger than the sum of its proper divisors (1).

264297457 is an equidigital number, since it uses as much as digits as its factorization.

264297457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 846720, while the sum is 46.

The square root of 264297457 is about 16257.2278387184. The cubic root of 264297457 is about 641.7477108032.

The spelling of 264297457 in words is "two hundred sixty-four million, two hundred ninety-seven thousand, four hundred fifty-seven".