264235669 has 2 divisors, whose sum is σ = 264235670. Its totient is φ = 264235668.

The previous prime is 264235639. The next prime is 264235781. The reversal of 264235669 is 966532462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 135140625 + 129095044 = 11625^2 + 11362^2 .

It is a cyclic number.

It is not a de Polignac number, because 264235669 - 2⁵ = 264235637 is a prime.

It is a super-2 number, since 2×264235669² = 139640977543755122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (264235639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132117834 + 132117835.

It is an arithmetic number, because the mean of its divisors is an integer number (132117835).

Almost surely, 2^264235669 is an apocalyptic number.

It is an amenable number.

264235669 is a deficient number, since it is larger than the sum of its proper divisors (1).

264235669 is an equidigital number, since it uses as much as digits as its factorization.

264235669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 43.

The square root of 264235669 is about 16255.3274036545. The cubic root of 264235669 is about 641.6976972082.

The spelling of 264235669 in words is "two hundred sixty-four million, two hundred thirty-five thousand, six hundred sixty-nine".