1331530064 has 10 divisors (see below), whose sum is σ = 2579839530. Its totient is φ = 665765024.

The previous prime is 1331530033. The next prime is 1331530093. The reversal of 1331530064 is 4600351331.

It can be written as a sum of positive squares in only one way, i.e., 1078465600 + 253064464 = 32840^2 + 15908^2 .

It is a super-2 number, since 2×1331530064² = 3545944622671688192, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41610299 + ... + 41610330.

It is an arithmetic number, because the mean of its divisors is an integer number (257983953).

Almost surely, 2^1331530064 is an apocalyptic number.

It is an amenable number.

1331530064 is a deficient number, since it is larger than the sum of its proper divisors (1248309466).

1331530064 is an equidigital number, since it uses as much as digits as its factorization.

1331530064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83220637 (or 83220631 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 1331530064 is about 36490.1365303009. The cubic root of 1331530064 is about 1100.1460037605.

Adding to 1331530064 its reverse (4600351331), we get a palindrome (5931881395).

The spelling of 1331530064 in words is "one billion, three hundred thirty-one million, five hundred thirty thousand, sixty-four".