138027707 has 4 divisors (see below), whose sum is σ = 138073416. Its totient is φ = 137982000.

The previous prime is 138027691. The next prime is 138027713. The reversal of 138027707 is 707720831.

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 138027707 - 2⁴ = 138027691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138027737) 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, 17978 + ... + 24479.

It is an arithmetic number, because the mean of its divisors is an integer number (34518354).

Almost surely, 2^138027707 is an apocalyptic number.

138027707 is a deficient number, since it is larger than the sum of its proper divisors (45709).

138027707 is an equidigital number, since it uses as much as digits as its factorization.

138027707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45708.

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 138027707 is about 11748.5193535186. The cubic root of 138027707 is about 516.7995074771.

The spelling of 138027707 in words is "one hundred thirty-eight million, twenty-seven thousand, seven hundred seven".