138220150 has 24 divisors (see below), whose sum is σ = 259749000. Its totient is φ = 54716160.

The previous prime is 138220127. The next prime is 138220151. The reversal of 138220150 is 51022831.

138220150 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138220151) 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 11 ways as a sum of consecutive naturals, for example, 9400 + ... + 19099.

It is an arithmetic number, because the mean of its divisors is an integer number (10822875).

Almost surely, 2^138220150 is an apocalyptic number.

138220150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138220150 is a deficient number, since it is larger than the sum of its proper divisors (121528850).

138220150 is a wasteful number, since it uses less digits than its factorization.

138220150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28608 (or 28603 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 138220150 is about 11756.7065966622. The cubic root of 138220150 is about 517.0395758532.

Adding to 138220150 its reverse (51022831), we get a palindrome (189242981).

The spelling of 138220150 in words is "one hundred thirty-eight million, two hundred twenty thousand, one hundred fifty".