163147138 has 32 divisors (see below), whose sum is σ = 307473408. Its totient is φ = 63070800.

The previous prime is 163147093. The next prime is 163147151. The reversal of 163147138 is 831741361.

163147138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16131 + ... + 24217.

It is an arithmetic number, because the mean of its divisors is an integer number (9608544).

Almost surely, 2^163147138 is an apocalyptic number.

163147138 is a deficient number, since it is larger than the sum of its proper divisors (144326270).

163147138 is a wasteful number, since it uses less digits than its factorization.

163147138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8238.

The product of its digits is 12096, while the sum is 34.

The square root of 163147138 is about 12772.9064037908. The cubic root of 163147138 is about 546.4198736472.

Adding to 163147138 its reverse (831741361), we get a palindrome (994888499).

The spelling of 163147138 in words is "one hundred sixty-three million, one hundred forty-seven thousand, one hundred thirty-eight".