264512393 has 12 divisors (see below), whose sum is σ = 280201860. Its totient is φ = 249401376.

The previous prime is 264512389. The next prime is 264512411. The reversal of 264512393 is 393215462.

It can be written as a sum of positive squares in 2 ways, for example, as 110082064 + 154430329 = 10492^2 + 12427^2 .

It is not a de Polignac number, because 264512393 - 2² = 264512389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264512383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51155 + ... + 56087.

It is an arithmetic number, because the mean of its divisors is an integer number (23350155).

Almost surely, 2^264512393 is an apocalyptic number.

It is an amenable number.

264512393 is a deficient number, since it is larger than the sum of its proper divisors (15689467).

264512393 is an equidigital number, since it uses as much as digits as its factorization.

264512393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5048 (or 5005 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 264512393 is about 16263.8369704077. The cubic root of 264512393 is about 641.9216276131.

The spelling of 264512393 in words is "two hundred sixty-four million, five hundred twelve thousand, three hundred ninety-three".