138124326 has 32 divisors (see below), whose sum is σ = 283852800. Its totient is φ = 44781120.

The previous prime is 138124291. The next prime is 138124331. The reversal of 138124326 is 623421831.

It is a junction number, because it is equal to n+sod(n) for n = 138124293 and 138124302.

It is a congruent number.

It is an unprimeable number.

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, 107355 + ... + 108633.

It is an arithmetic number, because the mean of its divisors is an integer number (8870400).

Almost surely, 2^138124326 is an apocalyptic number.

138124326 is an abundant number, since it is smaller than the sum of its proper divisors (145728474).

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

138124326 is a wasteful number, since it uses less digits than its factorization.

138124326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764.

The product of its digits is 6912, while the sum is 30.

The square root of 138124326 is about 11752.6305991467. The cubic root of 138124326 is about 516.9200654103.

The spelling of 138124326 in words is "one hundred thirty-eight million, one hundred twenty-four thousand, three hundred twenty-six".