1064264681 has 4 divisors (see below), whose sum is σ = 1067314500. Its totient is φ = 1061214864.

The previous prime is 1064264659. The next prime is 1064264683. The reversal of 1064264681 is 1864624601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1864624601 = 7 ⋅266374943.

It can be written as a sum of positive squares in 2 ways, for example, as 464014681 + 600250000 = 21541^2 + 24500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1064264681 is a prime.

It is a super-2 number, since 2×1064264681² = 2265318622448063522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1064264683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1524386 + ... + 1525083.

It is an arithmetic number, because the mean of its divisors is an integer number (266828625).

Almost surely, 2^1064264681 is an apocalyptic number.

It is an amenable number.

1064264681 is a deficient number, since it is larger than the sum of its proper divisors (3049819).

1064264681 is an equidigital number, since it uses as much as digits as its factorization.

1064264681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3049818.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 1064264681 is about 32623.0697666544. The cubic root of 1064264681 is about 1020.9783900063.

The spelling of 1064264681 in words is "one billion, sixty-four million, two hundred sixty-four thousand, six hundred eighty-one".