163322137 has 4 divisors (see below), whose sum is σ = 178169616. Its totient is φ = 148474660.

The previous prime is 163322129. The next prime is 163322141. The reversal of 163322137 is 731223361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 163322137 - 2³ = 163322129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163323137) 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 in 3 ways as a sum of consecutive naturals, for example, 7423723 + ... + 7423744.

It is an arithmetic number, because the mean of its divisors is an integer number (44542404).

Almost surely, 2^163322137 is an apocalyptic number.

It is an amenable number.

163322137 is a deficient number, since it is larger than the sum of its proper divisors (14847479).

163322137 is a wasteful number, since it uses less digits than its factorization.

163322137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14847478.

The product of its digits is 4536, while the sum is 28.

The square root of 163322137 is about 12779.7549663521. The cubic root of 163322137 is about 546.6151753917.

Adding to 163322137 its reverse (731223361), we get a palindrome (894545498).

The spelling of 163322137 in words is "one hundred sixty-three million, three hundred twenty-two thousand, one hundred thirty-seven".