139581304165 has 16 divisors (see below), whose sum is σ = 180418139136. Its totient is φ = 103364553600.

The previous prime is 139581304153. The next prime is 139581304217. The reversal of 139581304165 is 561403185931.

It is not a de Polignac number, because 139581304165 - 2¹⁷ = 139581173093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19573056 + ... + 19580185.

It is an arithmetic number, because the mean of its divisors is an integer number (11276133696).

Almost surely, 2^139581304165 is an apocalyptic number.

It is an amenable number.

139581304165 is a deficient number, since it is larger than the sum of its proper divisors (40836834971).

139581304165 is a wasteful number, since it uses less digits than its factorization.

139581304165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39153300.

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 139581304165 in words is "one hundred thirty-nine billion, five hundred eighty-one million, three hundred four thousand, one hundred sixty-five".