163422403 has 4 divisors (see below), whose sum is σ = 167222968. Its totient is φ = 159621840.

The previous prime is 163422367. The next prime is 163422407. The reversal of 163422403 is 304224361.

163422403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163422403 - 2⁹ = 163421891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163422407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1900218 + ... + 1900303.

It is an arithmetic number, because the mean of its divisors is an integer number (41805742).

Almost surely, 2^163422403 is an apocalyptic number.

163422403 is a deficient number, since it is larger than the sum of its proper divisors (3800565).

163422403 is an equidigital number, since it uses as much as digits as its factorization.

163422403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3800564.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 163422403 is about 12783.6772096295. The cubic root of 163422403 is about 546.7270110281.

Adding to 163422403 its reverse (304224361), we get a palindrome (467646764).

The spelling of 163422403 in words is "one hundred sixty-three million, four hundred twenty-two thousand, four hundred three".