1064643529 has 2 divisors, whose sum is σ = 1064643530. Its totient is φ = 1064643528.

The previous prime is 1064643497. The next prime is 1064643589. The reversal of 1064643529 is 9253464601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1063086025 + 1557504 = 32605^2 + 1248^2 .

It is a cyclic number.

It is not a de Polignac number, because 1064643529 - 2⁵ = 1064643497 is a prime.

It is a super-2 number, since 2×1064643529² = 2266931687683147682, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1064643491 and 1064643500.

It is not a weakly prime, because it can be changed into another prime (1064643589) 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, 532321764 + 532321765.

It is an arithmetic number, because the mean of its divisors is an integer number (532321765).

Almost surely, 2^1064643529 is an apocalyptic number.

It is an amenable number.

1064643529 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064643529 is an equidigital number, since it uses as much as digits as its factorization.

1064643529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 40.

The square root of 1064643529 is about 32628.8756931648. The cubic root of 1064643529 is about 1021.0995220708.

The spelling of 1064643529 in words is "one billion, sixty-four million, six hundred forty-three thousand, five hundred twenty-nine".