264754409 has 2 divisors, whose sum is σ = 264754410. Its totient is φ = 264754408.

The previous prime is 264754363. The next prime is 264754411. The reversal of 264754409 is 904457462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221563225 + 43191184 = 14885^2 + 6572^2 .

It is a cyclic number.

It is not a de Polignac number, because 264754409 - 2¹⁶ = 264688873 is a prime.

Together with 264754411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (264754439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132377204 + 132377205.

It is an arithmetic number, because the mean of its divisors is an integer number (132377205).

Almost surely, 2^264754409 is an apocalyptic number.

It is an amenable number.

264754409 is a deficient number, since it is larger than the sum of its proper divisors (1).

264754409 is an equidigital number, since it uses as much as digits as its factorization.

264754409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 41.

The square root of 264754409 is about 16271.2755799906. The cubic root of 264754409 is about 642.1173436450.

The spelling of 264754409 in words is "two hundred sixty-four million, seven hundred fifty-four thousand, four hundred nine".