138107459 has 8 divisors (see below), whose sum is σ = 159999840. Its totient is φ = 116755776.

The previous prime is 138107423. The next prime is 138107471. The reversal of 138107459 is 954701831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138107459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138107419) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 134624 + ... + 135645.

It is an arithmetic number, because the mean of its divisors is an integer number (19999980).

Almost surely, 2^138107459 is an apocalyptic number.

138107459 is a deficient number, since it is larger than the sum of its proper divisors (21892381).

138107459 is an equidigital number, since it uses as much as digits as its factorization.

138107459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270349.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 138107459 is about 11751.9129932109. The cubic root of 138107459 is about 516.8990233874.

The spelling of 138107459 in words is "one hundred thirty-eight million, one hundred seven thousand, four hundred fifty-nine".