163422605 has 4 divisors (see below), whose sum is σ = 196107132. Its totient is φ = 130738080.

The previous prime is 163422587. The next prime is 163422689. The reversal of 163422605 is 506224361.

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

It can be written as a sum of positive squares in 2 ways, for example, as 55636681 + 107785924 = 7459^2 + 10382^2 .

It is not a de Polignac number, because 163422605 - 2⁶ = 163422541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16342256 + ... + 16342265.

It is an arithmetic number, because the mean of its divisors is an integer number (49026783).

Almost surely, 2^163422605 is an apocalyptic number.

It is an amenable number.

163422605 is a deficient number, since it is larger than the sum of its proper divisors (32684527).

163422605 is an equidigital number, since it uses as much as digits as its factorization.

163422605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32684526.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 163422605 is about 12783.6851103271. The cubic root of 163422605 is about 546.7272362906.

Adding to 163422605 its reverse (506224361), we get a palindrome (669646966).

The spelling of 163422605 in words is "one hundred sixty-three million, four hundred twenty-two thousand, six hundred five".