361668733 has 2 divisors, whose sum is σ = 361668734. Its totient is φ = 361668732.

The previous prime is 361668689. The next prime is 361668751. The reversal of 361668733 is 337866163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302655609 + 59013124 = 17397^2 + 7682^2 .

It is an emirp because it is prime and its reverse (337866163) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 361668733 - 2⁹ = 361668221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 361668733.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361668763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180834366 + 180834367.

It is an arithmetic number, because the mean of its divisors is an integer number (180834367).

Almost surely, 2^361668733 is an apocalyptic number.

It is an amenable number.

361668733 is a deficient number, since it is larger than the sum of its proper divisors (1).

361668733 is an equidigital number, since it uses as much as digits as its factorization.

361668733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 43.

The square root of 361668733 is about 19017.5900944363. The cubic root of 361668733 is about 712.4761345448.

The spelling of 361668733 in words is "three hundred sixty-one million, six hundred sixty-eight thousand, seven hundred thirty-three".