138248447041 has 8 divisors (see below), whose sum is σ = 143543376000. Its totient is φ = 132988700880.

The previous prime is 138248447033. The next prime is 138248447089. The reversal of 138248447041 is 140744842831.

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 138248447041 - 2³ = 138248447033 is a prime.

It is a super-2 number, since 2×138248447041² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 138248446982 and 138248447000.

It is not an unprimeable number, because it can be changed into a prime (138248447341) 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, 8787691 + ... + 8803408.

It is an arithmetic number, because the mean of its divisors is an integer number (17942922000).

Almost surely, 2^138248447041 is an apocalyptic number.

It is an amenable number.

138248447041 is a deficient number, since it is larger than the sum of its proper divisors (5294928959).

138248447041 is a wasteful number, since it uses less digits than its factorization.

138248447041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17591399.

The product of its (nonzero) digits is 688128, while the sum is 46.

The spelling of 138248447041 in words is "one hundred thirty-eight billion, two hundred forty-eight million, four hundred forty-seven thousand, forty-one".