1001064643 has 2 divisors, whose sum is σ = 1001064644. Its totient is φ = 1001064642.

The previous prime is 1001064619. The next prime is 1001064653. The reversal of 1001064643 is 3464601001.

1001064643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001064643 - 2⁹ = 1001064131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001064653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500532321 + 500532322.

It is an arithmetic number, because the mean of its divisors is an integer number (500532322).

Almost surely, 2^1001064643 is an apocalyptic number.

1001064643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001064643 is an equidigital number, since it uses as much as digits as its factorization.

1001064643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1001064643 is about 31639.6056075293. The cubic root of 1001064643 is about 1000.3547551339.

Adding to 1001064643 its reverse (3464601001), we get a palindrome (4465665644).

The spelling of 1001064643 in words is "one billion, one million, sixty-four thousand, six hundred forty-three".