138614079 has 8 divisors (see below), whose sum is σ = 187350832. Its totient is φ = 91143360.

The previous prime is 138614033. The next prime is 138614087. The reversal of 138614079 is 970416831.

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

It is not a de Polignac number, because 138614079 - 2⁹ = 138613567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138614279) 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, 316252 + ... + 316689.

It is an arithmetic number, because the mean of its divisors is an integer number (23418854).

Almost surely, 2^138614079 is an apocalyptic number.

138614079 is a deficient number, since it is larger than the sum of its proper divisors (48736753).

138614079 is an equidigital number, since it uses as much as digits as its factorization.

138614079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633017.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 138614079 is about 11773.4480505925. The cubic root of 138614079 is about 517.5302995165.

The spelling of 138614079 in words is "one hundred thirty-eight million, six hundred fourteen thousand, seventy-nine".