139094305844 has 24 divisors (see below), whose sum is σ = 262158594600. Its totient is φ = 64192639104.

The previous prime is 139094305843. The next prime is 139094305871. The reversal of 139094305844 is 448503490931.

It can be written as a sum of positive squares in 4 ways, for example, as 26172768400 + 112921537444 = 161780^2 + 336038^2 .

It is a junction number, because it is equal to n+sod(n) for n = 139094305792 and 139094305801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139094305843) 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, 670682 + ... + 853230.

It is an arithmetic number, because the mean of its divisors is an integer number (10923274775).

Almost surely, 2^139094305844 is an apocalyptic number.

It is an amenable number.

139094305844 is a deficient number, since it is larger than the sum of its proper divisors (123064288756).

139094305844 is a wasteful number, since it uses less digits than its factorization.

139094305844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197219 (or 197217 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 50.

The spelling of 139094305844 in words is "one hundred thirty-nine billion, ninety-four million, three hundred five thousand, eight hundred forty-four".