393234161 has 2 divisors, whose sum is σ = 393234162. Its totient is φ = 393234160.

The previous prime is 393234073. The next prime is 393234167. The reversal of 393234161 is 161432393.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270799936 + 122434225 = 16456^2 + 11065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-393234161 is a prime.

It is not a weakly prime, because it can be changed into another prime (393234167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196617080 + 196617081.

It is an arithmetic number, because the mean of its divisors is an integer number (196617081).

Almost surely, 2^393234161 is an apocalyptic number.

It is an amenable number.

393234161 is a deficient number, since it is larger than the sum of its proper divisors (1).

393234161 is an equidigital number, since it uses as much as digits as its factorization.

393234161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 32.

The square root of 393234161 is about 19830.1326521030. The cubic root of 393234161 is about 732.6283938991.

The spelling of 393234161 in words is "three hundred ninety-three million, two hundred thirty-four thousand, one hundred sixty-one".