138307126 has 8 divisors (see below), whose sum is σ = 207706464. Its totient is φ = 69071640.

The previous prime is 138307123. The next prime is 138307139. The reversal of 138307126 is 621703831.

138307126 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×138307126² = 38257722204759752, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138307123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38830 + ... + 42241.

It is an arithmetic number, because the mean of its divisors is an integer number (25963308).

Almost surely, 2^138307126 is an apocalyptic number.

138307126 is a deficient number, since it is larger than the sum of its proper divisors (69399338).

138307126 is an equidigital number, since it uses as much as digits as its factorization.

138307126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81926.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 138307126 is about 11760.4050100326. The cubic root of 138307126 is about 517.1480033748.

The spelling of 138307126 in words is "one hundred thirty-eight million, three hundred seven thousand, one hundred twenty-six".