264901081 has 2 divisors, whose sum is σ = 264901082. Its totient is φ = 264901080.

The previous prime is 264901079. The next prime is 264901099. The reversal of 264901081 is 180109462.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 259725456 + 5175625 = 16116^2 + 2275^2 .

It is a cyclic number.

It is not a de Polignac number, because 264901081 - 2¹ = 264901079 is a prime.

It is a super-2 number, since 2×264901081² = 140345165429937122, which contains 22 as substring.

Together with 264901079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (264901381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132450540 + 132450541.

It is an arithmetic number, because the mean of its divisors is an integer number (132450541).

Almost surely, 2^264901081 is an apocalyptic number.

It is an amenable number.

264901081 is a deficient number, since it is larger than the sum of its proper divisors (1).

264901081 is an equidigital number, since it uses as much as digits as its factorization.

264901081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 264901081 is about 16275.7820395826. The cubic root of 264901081 is about 642.2358978539.

The spelling of 264901081 in words is "two hundred sixty-four million, nine hundred one thousand, eighty-one".