1064643229 has 4 divisors (see below), whose sum is σ = 1146538876. Its totient is φ = 982747584.

The previous prime is 1064643193. The next prime is 1064643247. The reversal of 1064643229 is 9223464601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 449355204 + 615288025 = 21198^2 + 24805^2 .

It is not a de Polignac number, because 1064643229 - 2¹⁵ = 1064610461 is a prime.

It is a super-2 number, since 2×1064643229² = 2266930410111092882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1064643289) 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 in 3 ways as a sum of consecutive naturals, for example, 40947804 + ... + 40947829.

It is an arithmetic number, because the mean of its divisors is an integer number (286634719).

Almost surely, 2^1064643229 is an apocalyptic number.

It is an amenable number.

1064643229 is a deficient number, since it is larger than the sum of its proper divisors (81895647).

1064643229 is an equidigital number, since it uses as much as digits as its factorization.

1064643229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81895646.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 1064643229 is about 32628.8710960094. The cubic root of 1064643229 is about 1021.0994261608.

The spelling of 1064643229 in words is "one billion, sixty-four million, six hundred forty-three thousand, two hundred twenty-nine".