264283681 has 2 divisors, whose sum is σ = 264283682. Its totient is φ = 264283680.

The previous prime is 264283667. The next prime is 264283693. The reversal of 264283681 is 186382462.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 259725456 + 4558225 = 16116^2 + 2135^2 .

It is a cyclic number.

It is not a de Polignac number, because 264283681 - 2⁹ = 264283169 is a prime.

It is a super-2 number, since 2×264283681² = 139691728085819522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (264283601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132141840 + 132141841.

It is an arithmetic number, because the mean of its divisors is an integer number (132141841).

Almost surely, 2^264283681 is an apocalyptic number.

It is an amenable number.

264283681 is a deficient number, since it is larger than the sum of its proper divisors (1).

264283681 is an equidigital number, since it uses as much as digits as its factorization.

264283681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 40.

The square root of 264283681 is about 16256.8041447266. The cubic root of 264283681 is about 641.7365606517.

The spelling of 264283681 in words is "two hundred sixty-four million, two hundred eighty-three thousand, six hundred eighty-one".