264134261 has 2 divisors, whose sum is σ = 264134262. Its totient is φ = 264134260.

The previous prime is 264134243. The next prime is 264134263. The reversal of 264134261 is 162431462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 263445361 + 688900 = 16231^2 + 830^2 .

It is a cyclic number.

It is not a de Polignac number, because 264134261 - 2²² = 259939957 is a prime.

It is a super-2 number, since 2×264134261² = 139533815668032242, which contains 22 as substring.

Together with 264134263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264134263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132067130 + 132067131.

It is an arithmetic number, because the mean of its divisors is an integer number (132067131).

Almost surely, 2^264134261 is an apocalyptic number.

It is an amenable number.

264134261 is a deficient number, since it is larger than the sum of its proper divisors (1).

264134261 is an equidigital number, since it uses as much as digits as its factorization.

264134261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 29.

The square root of 264134261 is about 16252.2078807773. The cubic root of 264134261 is about 641.6155967526.

The spelling of 264134261 in words is "two hundred sixty-four million, one hundred thirty-four thousand, two hundred sixty-one".