138124 has 12 divisors (see below), whose sum is σ = 276304. Its totient is φ = 59184.
The previous prime is 138113. The next prime is 138139. The reversal of 138124 is 421831.
138124 = T85 + T86 + ... + T112.
138124 is an admirable number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2439 + ... + 2494.
2138124 is an apocalyptic number.
138124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
138124 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
138124 is a wasteful number, since it uses less digits than its factorization.
138124 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4944 (or 4942 counting only the distinct ones).
The product of its digits is 192, while the sum is 19.
The square root of 138124 is about 371.6503733349. The cubic root of 138124 is about 51.6919658733.
Adding to 138124 its reverse (421831), we get a palindrome (559955).
It can be divided in two parts, 138 and 124, that added together give a palindrome (262).
The spelling of 138124 in words is "one hundred thirty-eight thousand, one hundred twenty-four".
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