138050930 has 16 divisors (see below), whose sum is σ = 252566424. Its totient is φ = 54314880.

The previous prime is 138050917. The next prime is 138050947. The reversal of 138050930 is 39050831.

138050930 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 69872881 + 68178049 = 8359^2 + 8257^2 .

It is a junction number, because it is equal to n+sod(n) for n = 138050893 and 138050902.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112547 + ... + 113766.

Almost surely, 2^138050930 is an apocalyptic number.

138050930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138050930 is a deficient number, since it is larger than the sum of its proper divisors (114515494).

138050930 is a wasteful number, since it uses less digits than its factorization.

138050930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226381.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 138050930 is about 11749.5076492592. The cubic root of 138050930 is about 516.8284894890.

Subtracting from 138050930 its reverse (39050831), we obtain a palindrome (99000099).

The spelling of 138050930 in words is "one hundred thirty-eight million, fifty thousand, nine hundred thirty".