1064221373 has 2 divisors, whose sum is σ = 1064221374. Its totient is φ = 1064221372.

The previous prime is 1064221363. The next prime is 1064221427. The reversal of 1064221373 is 3731224601.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 742126564 + 322094809 = 27242^2 + 17947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1064221373 is a prime.

It is a super-2 number, since 2×1064221373² = 2265134261500010258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1064221303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532110686 + 532110687.

It is an arithmetic number, because the mean of its divisors is an integer number (532110687).

Almost surely, 2^1064221373 is an apocalyptic number.

It is an amenable number.

1064221373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064221373 is an equidigital number, since it uses as much as digits as its factorization.

1064221373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 1064221373 is about 32622.4059964927. The cubic root of 1064221373 is about 1020.9645409664.

Adding to 1064221373 its reverse (3731224601), we get a palindrome (4795445974).

The spelling of 1064221373 in words is "one billion, sixty-four million, two hundred twenty-one thousand, three hundred seventy-three".