138900150 has 96 divisors (see below), whose sum is σ = 395212800. Its totient is φ = 35834400.

The previous prime is 138900133. The next prime is 138900161. The reversal of 138900150 is 51009831.

138900150 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40191 + ... + 43509.

It is an arithmetic number, because the mean of its divisors is an integer number (4116800).

Almost surely, 2^138900150 is an apocalyptic number.

138900150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 138900150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197606400).

138900150 is an abundant number, since it is smaller than the sum of its proper divisors (256312650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138900150 is a wasteful number, since it uses less digits than its factorization.

138900150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371 (or 3360 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 138900150 is about 11785.5907785736. The cubic root of 138900150 is about 517.8860803036.

Adding to 138900150 its reverse (51009831), we get a palindrome (189909981).

The spelling of 138900150 in words is "one hundred thirty-eight million, nine hundred thousand, one hundred fifty".