16323161 has 2 divisors, whose sum is σ = 16323162. Its totient is φ = 16323160.

The previous prime is 16323149. The next prime is 16323199. The reversal of 16323161 is 16132361.

It is a happy number.

16323161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12145225 + 4177936 = 3485^2 + 2044^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16323161 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16323061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8161580 + 8161581.

It is an arithmetic number, because the mean of its divisors is an integer number (8161581).

Almost surely, 2^16323161 is an apocalyptic number.

It is an amenable number.

16323161 is a deficient number, since it is larger than the sum of its proper divisors (1).

16323161 is an equidigital number, since it uses as much as digits as its factorization.

16323161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

The square root of 16323161 is about 4040.1931884503. The cubic root of 16323161 is about 253.6694037354.

The spelling of 16323161 in words is "sixteen million, three hundred twenty-three thousand, one hundred sixty-one".