138162112 has 56 divisors (see below), whose sum is σ = 300746160. Its totient is φ = 62453760.

The previous prime is 138162109. The next prime is 138162113. The reversal of 138162112 is 211261831.

138162112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138162113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160788 + ... + 161644.

Almost surely, 2^138162112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 138162112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150373080).

138162112 is an abundant number, since it is smaller than the sum of its proper divisors (162584048).

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

138162112 is a wasteful number, since it uses less digits than its factorization.

138162112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109 (or 1099 counting only the distinct ones).

The product of its digits is 576, while the sum is 25.

The square root of 138162112 is about 11754.2380442120. The cubic root of 138162112 is about 516.9671982152.

The spelling of 138162112 in words is "one hundred thirty-eight million, one hundred sixty-two thousand, one hundred twelve".