138052 has 6 divisors (see below), whose sum is σ = 241598. Its totient is φ = 69024.
The previous prime is 138041. The next prime is 138053. The reversal of 138052 is 250831.
It is a happy number.
It can be written as a sum of positive squares in only one way, i.e., 133956 + 4096 = 366^2 + 64^2 .
It is not an unprimeable number, because it can be changed into a prime (138053) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17253 + ... + 17260.
2138052 is an apocalyptic number.
It is an amenable number.
138052 is a deficient number, since it is larger than the sum of its proper divisors (103546).
138052 is a wasteful number, since it uses less digits than its factorization.
138052 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 34517 (or 34515 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 19.
The square root of 138052 is about 371.5534954754. The cubic root of 138052 is about 51.6829824757.
Adding to 138052 its reverse (250831), we get a palindrome (388883).
The spelling of 138052 in words is "one hundred thirty-eight thousand, fifty-two".
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