163331297 has 2 divisors, whose sum is σ = 163331298. Its totient is φ = 163331296.

The previous prime is 163331261. The next prime is 163331299. The reversal of 163331297 is 792133361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87310336 + 76020961 = 9344^2 + 8719^2 .

It is a cyclic number.

It is not a de Polignac number, because 163331297 - 2¹⁶ = 163265761 is a prime.

It is a super-3 number, since 3×163331297³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 163331299, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (163331299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81665648 + 81665649.

It is an arithmetic number, because the mean of its divisors is an integer number (81665649).

Almost surely, 2^163331297 is an apocalyptic number.

It is an amenable number.

163331297 is a deficient number, since it is larger than the sum of its proper divisors (1).

163331297 is an equidigital number, since it uses as much as digits as its factorization.

163331297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20412, while the sum is 35.

The square root of 163331297 is about 12780.1133406555. The cubic root of 163331297 is about 546.6253942583.

The spelling of 163331297 in words is "one hundred sixty-three million, three hundred thirty-one thousand, two hundred ninety-seven".