1200664433 has 2 divisors, whose sum is σ = 1200664434. Its totient is φ = 1200664432.

The previous prime is 1200664429. The next prime is 1200664481. The reversal of 1200664433 is 3344660021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 913429729 + 287234704 = 30223^2 + 16948^2 .

It is an emirp because it is prime and its reverse (3344660021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1200664433 - 2² = 1200664429 is a prime.

It is a super-2 number, since 2×1200664433² = 2883190161342422978, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200664396 and 1200664405.

It is not a weakly prime, because it can be changed into another prime (1200664733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600332216 + 600332217.

It is an arithmetic number, because the mean of its divisors is an integer number (600332217).

Almost surely, 2^1200664433 is an apocalyptic number.

It is an amenable number.

1200664433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200664433 is an equidigital number, since it uses as much as digits as its factorization.

1200664433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 1200664433 is about 34650.6050885118. The cubic root of 1200664433 is about 1062.8546622788.

The spelling of 1200664433 in words is "one billion, two hundred million, six hundred sixty-four thousand, four hundred thirty-three".