264081449 has 2 divisors, whose sum is σ = 264081450. Its totient is φ = 264081448.

The previous prime is 264081443. The next prime is 264081473. The reversal of 264081449 is 944180462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207936400 + 56145049 = 14420^2 + 7493^2 .

It is a cyclic number.

It is not a de Polignac number, because 264081449 - 2¹² = 264077353 is a prime.

It is not a weakly prime, because it can be changed into another prime (264081443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132040724 + 132040725.

It is an arithmetic number, because the mean of its divisors is an integer number (132040725).

Almost surely, 2^264081449 is an apocalyptic number.

It is an amenable number.

264081449 is a deficient number, since it is larger than the sum of its proper divisors (1).

264081449 is an equidigital number, since it uses as much as digits as its factorization.

264081449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 264081449 is about 16250.5830356944. The cubic root of 264081449 is about 641.5728315551.

The spelling of 264081449 in words is "two hundred sixty-four million, eighty-one thousand, four hundred forty-nine".