138107027 has 4 divisors (see below), whose sum is σ = 138715656. Its totient is φ = 137498400.

The previous prime is 138106993. The next prime is 138107069. The reversal of 138107027 is 720701831.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 138107027 - 2¹² = 138102931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138107527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303974 + ... + 304427.

It is an arithmetic number, because the mean of its divisors is an integer number (34678914).

Almost surely, 2^138107027 is an apocalyptic number.

138107027 is a deficient number, since it is larger than the sum of its proper divisors (608629).

138107027 is an equidigital number, since it uses as much as digits as its factorization.

138107027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608628.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 138107027 is about 11751.8946132102. The cubic root of 138107027 is about 516.8984844336.

Adding to 138107027 its reverse (720701831), we get a palindrome (858808858).

The spelling of 138107027 in words is "one hundred thirty-eight million, one hundred seven thousand, twenty-seven".