138510147 has 16 divisors (see below), whose sum is σ = 190563840. Its totient is φ = 89442912.

The previous prime is 138510143. The next prime is 138510161. The reversal of 138510147 is 741015831.

It is not a de Polignac number, because 138510147 - 2² = 138510143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138510143) 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, 7048 + ... + 18074.

It is an arithmetic number, because the mean of its divisors is an integer number (11910240).

Almost surely, 2^138510147 is an apocalyptic number.

138510147 is a deficient number, since it is larger than the sum of its proper divisors (52053693).

138510147 is a wasteful number, since it uses less digits than its factorization.

138510147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11162.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 138510147 is about 11769.0333927643. The cubic root of 138510147 is about 517.4009201433.

Adding to 138510147 its reverse (741015831), we get a palindrome (879525978).

The spelling of 138510147 in words is "one hundred thirty-eight million, five hundred ten thousand, one hundred forty-seven".