138425112 has 80 divisors (see below), whose sum is σ = 443121360. Its totient is φ = 39548736.

The previous prime is 138425107. The next prime is 138425123. The reversal of 138425112 is 211524831.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10723 + ... + 19794.

It is an arithmetic number, because the mean of its divisors is an integer number (5539017).

Almost surely, 2^138425112 is an apocalyptic number.

138425112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

138425112 is an abundant number, since it is smaller than the sum of its proper divisors (304696248).

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

138425112 is a wasteful number, since it uses less digits than its factorization.

138425112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30542 (or 30529 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 138425112 is about 11765.4201794921. The cubic root of 138425112 is about 517.2950164846.

Adding to 138425112 its reverse (211524831), we get a palindrome (349949943).

The spelling of 138425112 in words is "one hundred thirty-eight million, four hundred twenty-five thousand, one hundred twelve".