138711126 has 16 divisors (see below), whose sum is σ = 293741424. Its totient is φ = 43517184.

The previous prime is 138711101. The next prime is 138711127. The reversal of 138711126 is 621117831.

It is a junction number, because it is equal to n+sod(n) for n = 138711093 and 138711102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138711127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 679855 + ... + 680058.

It is an arithmetic number, because the mean of its divisors is an integer number (18358839).

Almost surely, 2^138711126 is an apocalyptic number.

138711126 is an abundant number, since it is smaller than the sum of its proper divisors (155030298).

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

138711126 is a wasteful number, since it uses less digits than its factorization.

138711126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1359935.

The product of its digits is 2016, while the sum is 30.

The square root of 138711126 is about 11777.5687643928. The cubic root of 138711126 is about 517.6510497479.

Adding to 138711126 its reverse (621117831), we get a palindrome (759828957).

The spelling of 138711126 in words is "one hundred thirty-eight million, seven hundred eleven thousand, one hundred twenty-six".