138025068 has 12 divisors (see below), whose sum is σ = 322058520. Its totient is φ = 46008352.

The previous prime is 138025049. The next prime is 138025073. The reversal of 138025068 is 860520831.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×138025068³ (a number of 25 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5751033 + ... + 5751056.

It is an arithmetic number, because the mean of its divisors is an integer number (26838210).

Almost surely, 2^138025068 is an apocalyptic number.

It is an amenable number.

138025068 is an abundant number, since it is smaller than the sum of its proper divisors (184033452).

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

138025068 is a wasteful number, since it uses less digits than its factorization.

138025068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11502096 (or 11502094 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 138025068 is about 11748.4070409567. The cubic root of 138025068 is about 516.7962138326.

Adding to 138025068 its reverse (860520831), we get a palindrome (998545899).

The spelling of 138025068 in words is "one hundred thirty-eight million, twenty-five thousand, sixty-eight".