264332543 has 2 divisors, whose sum is σ = 264332544. Its totient is φ = 264332542.

The previous prime is 264332533. The next prime is 264332573. The reversal of 264332543 is 345233462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 264332543 - 2⁴ = 264332527 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264332533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132166271 + 132166272.

It is an arithmetic number, because the mean of its divisors is an integer number (132166272).

Almost surely, 2^264332543 is an apocalyptic number.

264332543 is a deficient number, since it is larger than the sum of its proper divisors (1).

264332543 is an equidigital number, since it uses as much as digits as its factorization.

264332543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 32.

The square root of 264332543 is about 16258.3068921705. The cubic root of 264332543 is about 641.7761072977.

The spelling of 264332543 in words is "two hundred sixty-four million, three hundred thirty-two thousand, five hundred forty-three".