264752909 has 2 divisors, whose sum is σ = 264752910. Its totient is φ = 264752908.

The previous prime is 264752903. The next prime is 264752921. The reversal of 264752909 is 909257462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264160009 + 592900 = 16253^2 + 770^2 .

It is a cyclic number.

It is not a de Polignac number, because 264752909 - 2⁴ = 264752893 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 264752909.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264752903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132376454 + 132376455.

It is an arithmetic number, because the mean of its divisors is an integer number (132376455).

Almost surely, 2^264752909 is an apocalyptic number.

It is an amenable number.

264752909 is a deficient number, since it is larger than the sum of its proper divisors (1).

264752909 is an equidigital number, since it uses as much as digits as its factorization.

264752909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 264752909 is about 16271.2294864279. The cubic root of 264752909 is about 642.1161309767.

The spelling of 264752909 in words is "two hundred sixty-four million, seven hundred fifty-two thousand, nine hundred nine".