138732030181 has 8 divisors (see below), whose sum is σ = 149140817280. Its totient is φ = 128633953248.

The previous prime is 138732030133. The next prime is 138732030233. The reversal of 138732030181 is 181030237831.

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 138732030181 - 2⁷ = 138732030053 is a prime.

It is a super-2 number, since 2×138732030181² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 138732030181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138732010181) 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, 77676616 + ... + 77678401.

It is an arithmetic number, because the mean of its divisors is an integer number (18642602160).

Almost surely, 2^138732030181 is an apocalyptic number.

It is an amenable number.

138732030181 is a deficient number, since it is larger than the sum of its proper divisors (10408787099).

138732030181 is a wasteful number, since it uses less digits than its factorization.

138732030181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155355083.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 138732030181 in words is "one hundred thirty-eight billion, seven hundred thirty-two million, thirty thousand, one hundred eighty-one".