264131443 has 2 divisors, whose sum is σ = 264131444. Its totient is φ = 264131442.

The previous prime is 264131423. The next prime is 264131513. The reversal of 264131443 is 344131462.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264131443 is a prime.

It is not a weakly prime, because it can be changed into another prime (264131423) 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, 132065721 + 132065722.

It is an arithmetic number, because the mean of its divisors is an integer number (132065722).

Almost surely, 2^264131443 is an apocalyptic number.

264131443 is a deficient number, since it is larger than the sum of its proper divisors (1).

264131443 is an equidigital number, since it uses as much as digits as its factorization.

264131443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 28.

The square root of 264131443 is about 16252.1211846331. The cubic root of 264131443 is about 641.6133149847.

The spelling of 264131443 in words is "two hundred sixty-four million, one hundred thirty-one thousand, four hundred forty-three".