138841192996 has 27 divisors (see below), whose sum is σ = 267084262417. Its totient is φ = 63105907040.

The previous prime is 138841192967. The next prime is 138841193041. The reversal of 138841192996 is 699291148831.

The square root of 138841192996 is 372614.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 48158302500 + 90682890496 = 219450^2 + 301136^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8189040 + ... + 8205976.

Almost surely, 2^138841192996 is an apocalyptic number.

138841192996 is the 372614-th square number.

It is an amenable number.

138841192996 is a deficient number, since it is larger than the sum of its proper divisors (128243069421).

138841192996 is an frugal number, since it uses more digits than its factorization.

138841192996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33900 (or 16950 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 61.

The spelling of 138841192996 in words is "one hundred thirty-eight billion, eight hundred forty-one million, one hundred ninety-two thousand, nine hundred ninety-six".