264499871 has 2 divisors, whose sum is σ = 264499872. Its totient is φ = 264499870.

The previous prime is 264499861. The next prime is 264499877. The reversal of 264499871 is 178994462.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 264499871 - 2¹⁴ = 264483487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264499877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132249935 + 132249936.

It is an arithmetic number, because the mean of its divisors is an integer number (132249936).

Almost surely, 2^264499871 is an apocalyptic number.

264499871 is a deficient number, since it is larger than the sum of its proper divisors (1).

264499871 is an equidigital number, since it uses as much as digits as its factorization.

264499871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 50.

The square root of 264499871 is about 16263.4520013434. The cubic root of 264499871 is about 641.9114979434.

The spelling of 264499871 in words is "two hundred sixty-four million, four hundred ninety-nine thousand, eight hundred seventy-one".