139405217593 has 8 divisors (see below), whose sum is σ = 143915097600. Its totient is φ = 134896146240.

The previous prime is 139405217569. The next prime is 139405217603. The reversal of 139405217593 is 395712504931.

It is a happy number.

139405217593 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139405217593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139405217533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158433 + ... + 551281.

It is an arithmetic number, because the mean of its divisors is an integer number (17989387200).

Almost surely, 2^139405217593 is an apocalyptic number.

It is an amenable number.

139405217593 is a deficient number, since it is larger than the sum of its proper divisors (4509880007).

139405217593 is a wasteful number, since it uses less digits than its factorization.

139405217593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404327.

The product of its (nonzero) digits is 1020600, while the sum is 49.

The spelling of 139405217593 in words is "one hundred thirty-nine billion, four hundred five million, two hundred seventeen thousand, five hundred ninety-three".