1200664733 has 2 divisors, whose sum is σ = 1200664734. Its totient is φ = 1200664732.

The previous prime is 1200664727. The next prime is 1200664783. The reversal of 1200664733 is 3374660021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 638168644 + 562496089 = 25262^2 + 23717^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200664733 - 2¹⁴ = 1200648349 is a prime.

It is a super-2 number, since 2×1200664733² = 2883191602139922578, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1200664733.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200664783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600332366 + 600332367.

It is an arithmetic number, because the mean of its divisors is an integer number (600332367).

Almost surely, 2^1200664733 is an apocalyptic number.

It is an amenable number.

1200664733 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200664733 is an equidigital number, since it uses as much as digits as its factorization.

1200664733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 32.

The square root of 1200664733 is about 34650.6094174403. The cubic root of 1200664733 is about 1062.8547508010.

The spelling of 1200664733 in words is "one billion, two hundred million, six hundred sixty-four thousand, seven hundred thirty-three".