264075491 has 2 divisors, whose sum is σ = 264075492. Its totient is φ = 264075490.

The previous prime is 264075481. The next prime is 264075517. The reversal of 264075491 is 194570462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264075491 - 2¹⁰ = 264074467 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (264075481) 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, 132037745 + 132037746.

It is an arithmetic number, because the mean of its divisors is an integer number (132037746).

Almost surely, 2^264075491 is an apocalyptic number.

264075491 is a deficient number, since it is larger than the sum of its proper divisors (1).

264075491 is an equidigital number, since it uses as much as digits as its factorization.

264075491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 264075491 is about 16250.3997181608. The cubic root of 264075491 is about 641.5680066299.

The spelling of 264075491 in words is "two hundred sixty-four million, seventy-five thousand, four hundred ninety-one".