163966097 has 2 divisors, whose sum is σ = 163966098. Its totient is φ = 163966096.

The previous prime is 163966079. The next prime is 163966141. The reversal of 163966097 is 790669361.

It is a happy number.

163966097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (163966079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123121216 + 40844881 = 11096^2 + 6391^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163966097 is a prime.

It is not a weakly prime, because it can be changed into another prime (163966027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81983048 + 81983049.

It is an arithmetic number, because the mean of its divisors is an integer number (81983049).

Almost surely, 2^163966097 is an apocalyptic number.

It is an amenable number.

163966097 is a deficient number, since it is larger than the sum of its proper divisors (1).

163966097 is an equidigital number, since it uses as much as digits as its factorization.

163966097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 163966097 is about 12804.9247166862. The cubic root of 163966097 is about 547.3326463894.

The spelling of 163966097 in words is "one hundred sixty-three million, nine hundred sixty-six thousand, ninety-seven".