264340133 has 4 divisors (see below), whose sum is σ = 273455340. Its totient is φ = 255224928.

The previous prime is 264340117. The next prime is 264340159. The reversal of 264340133 is 331043462.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 151831684 + 112508449 = 12322^2 + 10607^2 .

It is a cyclic number.

It is not a de Polignac number, because 264340133 - 2⁴ = 264340117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264840133) 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 3 ways as a sum of consecutive naturals, for example, 4557560 + ... + 4557617.

It is an arithmetic number, because the mean of its divisors is an integer number (68363835).

Almost surely, 2^264340133 is an apocalyptic number.

It is an amenable number.

264340133 is a deficient number, since it is larger than the sum of its proper divisors (9115207).

264340133 is an equidigital number, since it uses as much as digits as its factorization.

264340133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9115206.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 264340133 is about 16258.5403096342. The cubic root of 264340133 is about 641.7822498559.

Adding to 264340133 its reverse (331043462), we get a palindrome (595383595).

The spelling of 264340133 in words is "two hundred sixty-four million, three hundred forty thousand, one hundred thirty-three".