138006147 has 16 divisors (see below), whose sum is σ = 188554752. Its totient is φ = 89744160.

The previous prime is 138006137. The next prime is 138006151. The reversal of 138006147 is 741600831.

It is a happy number.

It is not a de Polignac number, because 138006147 - 2⁷ = 138006019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138006107) 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 15 ways as a sum of consecutive naturals, for example, 45193 + ... + 48149.

It is an arithmetic number, because the mean of its divisors is an integer number (11784672).

Almost surely, 2^138006147 is an apocalyptic number.

138006147 is a deficient number, since it is larger than the sum of its proper divisors (50548605).

138006147 is a wasteful number, since it uses less digits than its factorization.

138006147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3338.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 138006147 is about 11747.6017552520. The cubic root of 138006147 is about 516.7725979582.

Adding to 138006147 its reverse (741600831), we get a palindrome (879606978).

The spelling of 138006147 in words is "one hundred thirty-eight million, six thousand, one hundred forty-seven".