160640138 has 16 divisors (see below), whose sum is σ = 249181920. Its totient is φ = 77624976.

The previous prime is 160640111. The next prime is 160640147. The reversal of 160640138 is 831046061.

160640138 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 160640138.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4208 + ... + 18411.

It is an arithmetic number, because the mean of its divisors is an integer number (15573870).

Almost surely, 2^160640138 is an apocalyptic number.

160640138 is a deficient number, since it is larger than the sum of its proper divisors (88541782).

160640138 is a wasteful number, since it uses less digits than its factorization.

160640138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22741.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 160640138 is about 12674.3890582544. The cubic root of 160640138 is about 543.6065606936.

Adding to 160640138 its reverse (831046061), we get a palindrome (991686199).

The spelling of 160640138 in words is "one hundred sixty million, six hundred forty thousand, one hundred thirty-eight".