264894517 has 2 divisors, whose sum is σ = 264894518. Its totient is φ = 264894516.

The previous prime is 264894503. The next prime is 264894533. The reversal of 264894517 is 715498462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 235745316 + 29149201 = 15354^2 + 5399^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264894517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264894547) 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, 132447258 + 132447259.

It is an arithmetic number, because the mean of its divisors is an integer number (132447259).

Almost surely, 2^264894517 is an apocalyptic number.

It is an amenable number.

264894517 is a deficient number, since it is larger than the sum of its proper divisors (1).

264894517 is an equidigital number, since it uses as much as digits as its factorization.

264894517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 46.

The square root of 264894517 is about 16275.5803890368. The cubic root of 264894517 is about 642.2305931427.

The spelling of 264894517 in words is "two hundred sixty-four million, eight hundred ninety-four thousand, five hundred seventeen".