162138222 has 12 divisors (see below), whose sum is σ = 351299520. Its totient is φ = 54046068.

The previous prime is 162138199. The next prime is 162138239. The reversal of 162138222 is 222831261.

162138222 is a `hidden beast` number, since 1 + 621 + 38 + 2 + 2 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4503822 + ... + 4503857.

It is an arithmetic number, because the mean of its divisors is an integer number (29274960).

Almost surely, 2^162138222 is an apocalyptic number.

162138222 is an abundant number, since it is smaller than the sum of its proper divisors (189161298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

162138222 is a wasteful number, since it uses less digits than its factorization.

162138222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9007687 (or 9007684 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 162138222 is about 12733.3507766024. The cubic root of 162138222 is about 545.2911745428.

Adding to 162138222 its reverse (222831261), we get a palindrome (384969483).

It can be divided in two parts, 162 and 138222, that added together give a square (138384 = 372²).

The spelling of 162138222 in words is "one hundred sixty-two million, one hundred thirty-eight thousand, two hundred twenty-two".