162368138 has 4 divisors (see below), whose sum is σ = 243552210. Its totient is φ = 81184068.

The previous prime is 162368123. The next prime is 162368149. The reversal of 162368138 is 831863261.

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

It can be written as a sum of positive squares in only one way, i.e., 82319329 + 80048809 = 9073^2 + 8947^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 40592033 + ... + 40592036.

Almost surely, 2^162368138 is an apocalyptic number.

162368138 is a deficient number, since it is larger than the sum of its proper divisors (81184072).

162368138 is an equidigital number, since it uses as much as digits as its factorization.

162368138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81184071.

The product of its digits is 41472, while the sum is 38.

The square root of 162368138 is about 12742.3756811672. The cubic root of 162368138 is about 545.5487982563.

The spelling of 162368138 in words is "one hundred sixty-two million, three hundred sixty-eight thousand, one hundred thirty-eight".