264334261 has 2 divisors, whose sum is σ = 264334262. Its totient is φ = 264334260.

The previous prime is 264334249. The next prime is 264334313. The reversal of 264334261 is 162433462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214066161 + 50268100 = 14631^2 + 7090^2 .

It is a cyclic number.

It is not a de Polignac number, because 264334261 - 2⁹ = 264333749 is a prime.

It is a super-2 number, since 2×264334261² = 139745203076832242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264334661) 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, 132167130 + 132167131.

It is an arithmetic number, because the mean of its divisors is an integer number (132167131).

Almost surely, 2^264334261 is an apocalyptic number.

It is an amenable number.

264334261 is a deficient number, since it is larger than the sum of its proper divisors (1).

264334261 is an equidigital number, since it uses as much as digits as its factorization.

264334261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 31.

The square root of 264334261 is about 16258.3597266145. The cubic root of 264334261 is about 641.7774976789. Note that the first 3 decimals are identical.

The spelling of 264334261 in words is "two hundred sixty-four million, three hundred thirty-four thousand, two hundred sixty-one".