1064043509 has 2 divisors, whose sum is σ = 1064043510. Its totient is φ = 1064043508.

The previous prime is 1064043443. The next prime is 1064043551. The reversal of 1064043509 is 9053404601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 882387025 + 181656484 = 29705^2 + 13478^2 .

It is a cyclic number.

It is not a de Polignac number, because 1064043509 - 2¹² = 1064039413 is a prime.

It is a super-2 number, since 2×1064043509² = 2264377178090066162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1064043809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532021754 + 532021755.

It is an arithmetic number, because the mean of its divisors is an integer number (532021755).

Almost surely, 2^1064043509 is an apocalyptic number.

It is an amenable number.

1064043509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064043509 is an equidigital number, since it uses as much as digits as its factorization.

1064043509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 1064043509 is about 32619.6797807704. The cubic root of 1064043509 is about 1020.9076596448.

The spelling of 1064043509 in words is "one billion, sixty-four million, forty-three thousand, five hundred nine".