138083079 has 8 divisors (see below), whose sum is σ = 184193152. Its totient is φ = 92014200.

The previous prime is 138083009. The next prime is 138083081. The reversal of 138083079 is 970380831.

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

It is not a de Polignac number, because 138083079 - 2¹⁷ = 137952007 is a prime.

It is a super-2 number, since 2×138083079² = 38133873412240482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138083009) 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, 1369 + ... + 16674.

It is an arithmetic number, because the mean of its divisors is an integer number (23024144).

Almost surely, 2^138083079 is an apocalyptic number.

138083079 is a deficient number, since it is larger than the sum of its proper divisors (46110073).

138083079 is a wasteful number, since it uses less digits than its factorization.

138083079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20597.

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

The square root of 138083079 is about 11750.8756694980. The cubic root of 138083079 is about 516.8686056729.

The spelling of 138083079 in words is "one hundred thirty-eight million, eighty-three thousand, seventy-nine".