264481913 has 2 divisors, whose sum is σ = 264481914. Its totient is φ = 264481912.

The previous prime is 264481901. The next prime is 264481961. The reversal of 264481913 is 319184462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254977024 + 9504889 = 15968^2 + 3083^2 .

It is a cyclic number.

It is not a de Polignac number, because 264481913 - 2¹² = 264477817 is a prime.

It is not a weakly prime, because it can be changed into another prime (264481313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132240956 + 132240957.

It is an arithmetic number, because the mean of its divisors is an integer number (132240957).

Almost surely, 2^264481913 is an apocalyptic number.

It is an amenable number.

264481913 is a deficient number, since it is larger than the sum of its proper divisors (1).

264481913 is an equidigital number, since it uses as much as digits as its factorization.

264481913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 264481913 is about 16262.8998951601. The cubic root of 264481913 is about 641.8969702646.

The spelling of 264481913 in words is "two hundred sixty-four million, four hundred eighty-one thousand, nine hundred thirteen".