138080155 has 8 divisors (see below), whose sum is σ = 172900512. Its totient is φ = 105661248.

The previous prime is 138080153. The next prime is 138080221. The reversal of 138080155 is 551080831.

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

It is a cyclic number.

It is not a de Polignac number, because 138080155 - 2¹ = 138080153 is a prime.

It is a super-2 number, since 2×138080155² = 38132258409648050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138080153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600234 + ... + 600463.

It is an arithmetic number, because the mean of its divisors is an integer number (21612564).

Almost surely, 2^138080155 is an apocalyptic number.

138080155 is a deficient number, since it is larger than the sum of its proper divisors (34820357).

138080155 is a wasteful number, since it uses less digits than its factorization.

138080155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1200725.

The product of its (nonzero) digits is 4800, while the sum is 31.

The square root of 138080155 is about 11750.7512525796. The cubic root of 138080155 is about 516.8649573029.

The spelling of 138080155 in words is "one hundred thirty-eight million, eighty thousand, one hundred fifty-five".