163099397 has 2 divisors, whose sum is σ = 163099398. Its totient is φ = 163099396.

The previous prime is 163099333. The next prime is 163099427. The reversal of 163099397 is 793990361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 133494916 + 29604481 = 11554^2 + 5441^2 .

It is a cyclic number.

It is not a de Polignac number, because 163099397 - 2⁶ = 163099333 is a prime.

It is a super-3 number, since 3×163099397³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163099327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81549698 + 81549699.

It is an arithmetic number, because the mean of its divisors is an integer number (81549699).

Almost surely, 2^163099397 is an apocalyptic number.

It is an amenable number.

163099397 is a deficient number, since it is larger than the sum of its proper divisors (1).

163099397 is an equidigital number, since it uses as much as digits as its factorization.

163099397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 275562, while the sum is 47.

The square root of 163099397 is about 12771.0374284942. The cubic root of 163099397 is about 546.3665696655.

The spelling of 163099397 in words is "one hundred sixty-three million, ninety-nine thousand, three hundred ninety-seven".