1200664373 has 2 divisors, whose sum is σ = 1200664374. Its totient is φ = 1200664372.

The previous prime is 1200664291. The next prime is 1200664411. The reversal of 1200664373 is 3734660021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1097398129 + 103266244 = 33127^2 + 10162^2 .

It is an emirp because it is prime and its reverse (3734660021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1200664373 - 2¹⁴ = 1200647989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200694373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600332186 + 600332187.

It is an arithmetic number, because the mean of its divisors is an integer number (600332187).

Almost surely, 2^1200664373 is an apocalyptic number.

It is an amenable number.

1200664373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200664373 is an equidigital number, since it uses as much as digits as its factorization.

1200664373 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 1200664373 is about 34650.6042227260. The cubic root of 1200664373 is about 1062.8546445744.

The spelling of 1200664373 in words is "one billion, two hundred million, six hundred sixty-four thousand, three hundred seventy-three".