163247423 has 2 divisors, whose sum is σ = 163247424. Its totient is φ = 163247422.

The previous prime is 163247401. The next prime is 163247429. The reversal of 163247423 is 324742361.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 163247423 - 2¹⁸ = 162985279 is a prime.

It is a super-2 number, since 2×163247423² = 53299442232281858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 163247423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163247429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81623711 + 81623712.

It is an arithmetic number, because the mean of its divisors is an integer number (81623712).

Almost surely, 2^163247423 is an apocalyptic number.

163247423 is a deficient number, since it is larger than the sum of its proper divisors (1).

163247423 is an equidigital number, since it uses as much as digits as its factorization.

163247423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 32.

The square root of 163247423 is about 12776.8314929798. The cubic root of 163247423 is about 546.5318104213.

Adding to 163247423 its reverse (324742361), we get a palindrome (487989784).

The spelling of 163247423 in words is "one hundred sixty-three million, two hundred forty-seven thousand, four hundred twenty-three".