138192126 has 32 divisors (see below), whose sum is σ = 283143168. Its totient is φ = 44943840.

The previous prime is 138192121. The next prime is 138192157. The reversal of 138192126 is 621291831.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138192121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129471 + ... + 130533.

It is an arithmetic number, because the mean of its divisors is an integer number (8848224).

Almost surely, 2^138192126 is an apocalyptic number.

138192126 is an abundant number, since it is smaller than the sum of its proper divisors (144951042).

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

138192126 is a wasteful number, since it uses less digits than its factorization.

With its successor (138192127) it forms an eRAP, since the sums of their prime factors are consecutive (1576 and 1577).

138192126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576.

The product of its digits is 5184, while the sum is 33.

The square root of 138192126 is about 11755.5147058732. The cubic root of 138192126 is about 517.0046304022.

The spelling of 138192126 in words is "one hundred thirty-eight million, one hundred ninety-two thousand, one hundred twenty-six".