163020097 has 4 divisors (see below), whose sum is σ = 163064020. Its totient is φ = 162976176.

The previous prime is 163020083. The next prime is 163020101. The reversal of 163020097 is 790020361.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 116834481 + 46185616 = 10809^2 + 6796^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163020097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163020037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15822 + ... + 24007.

It is an arithmetic number, because the mean of its divisors is an integer number (40766005).

Almost surely, 2^163020097 is an apocalyptic number.

It is an amenable number.

163020097 is a deficient number, since it is larger than the sum of its proper divisors (43923).

163020097 is an equidigital number, since it uses as much as digits as its factorization.

163020097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43922.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 163020097 is about 12767.9323698084. The cubic root of 163020097 is about 546.2780063036.

The spelling of 163020097 in words is "one hundred sixty-three million, twenty thousand, ninety-seven".