163346423 has 2 divisors, whose sum is σ = 163346424. Its totient is φ = 163346422.

The previous prime is 163346413. The next prime is 163346459. The reversal of 163346423 is 324643361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 163346423 - 2¹² = 163342327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 163346423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163346413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81673211 + 81673212.

It is an arithmetic number, because the mean of its divisors is an integer number (81673212).

Almost surely, 2^163346423 is an apocalyptic number.

163346423 is a deficient number, since it is larger than the sum of its proper divisors (1).

163346423 is an equidigital number, since it uses as much as digits as its factorization.

163346423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 32.

The square root of 163346423 is about 12780.7051057444. The cubic root of 163346423 is about 546.6422679391.

Adding to 163346423 its reverse (324643361), we get a palindrome (487989784).

The spelling of 163346423 in words is "one hundred sixty-three million, three hundred forty-six thousand, four hundred twenty-three".