163430497 has 2 divisors, whose sum is σ = 163430498. Its totient is φ = 163430496.

The previous prime is 163430473. The next prime is 163430507. The reversal of 163430497 is 794034361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90174016 + 73256481 = 9496^2 + 8559^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163430497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (163430417) 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, 81715248 + 81715249.

It is an arithmetic number, because the mean of its divisors is an integer number (81715249).

Almost surely, 2^163430497 is an apocalyptic number.

It is an amenable number.

163430497 is a deficient number, since it is larger than the sum of its proper divisors (1).

163430497 is an equidigital number, since it uses as much as digits as its factorization.

163430497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 163430497 is about 12783.9937812876. The cubic root of 163430497 is about 546.7360369946.

It can be divided in two parts, 1634 and 30497, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 163430497 in words is "one hundred sixty-three million, four hundred thirty thousand, four hundred ninety-seven".