264194269 has 2 divisors, whose sum is σ = 264194270. Its totient is φ = 264194268.

The previous prime is 264194267. The next prime is 264194299. The reversal of 264194269 is 962491462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 264062500 + 131769 = 16250^2 + 363^2 .

It is a cyclic number.

It is not a de Polignac number, because 264194269 - 2¹ = 264194267 is a prime.

It is a super-2 number, since 2×264194269² = 139597223544888722, which contains 22 as substring.

Together with 264194267, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264194267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132097134 + 132097135.

It is an arithmetic number, because the mean of its divisors is an integer number (132097135).

Almost surely, 2^264194269 is an apocalyptic number.

It is an amenable number.

264194269 is a deficient number, since it is larger than the sum of its proper divisors (1).

264194269 is an equidigital number, since it uses as much as digits as its factorization.

264194269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 43.

The square root of 264194269 is about 16254.0539250982. The cubic root of 264194269 is about 641.6641820859.

The spelling of 264194269 in words is "two hundred sixty-four million, one hundred ninety-four thousand, two hundred sixty-nine".