139413371161 has 9 divisors (see below), whose sum is σ = 141759462429. Its totient is φ = 137105503200.

The previous prime is 139413371147. The next prime is 139413371173. The reversal of 139413371161 is 161173314931.

The square root of 139413371161 is 373381.

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

139413371161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 104212106761 + 35201264400 = 322819^2 + 187620^2 .

It is not a de Polignac number, because 139413371161 - 2¹⁹ = 139412846873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139413371101) 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 8 ways as a sum of consecutive naturals, for example, 22773181 + ... + 22779301.

It is an arithmetic number, because the mean of its divisors is an integer number (15751051381).

Almost surely, 2^139413371161 is an apocalyptic number.

139413371161 is the 373381-st square number.

139413371161 is the 186691-st centered octagonal number.

It is an amenable number.

139413371161 is a deficient number, since it is larger than the sum of its proper divisors (2346091268).

139413371161 is an frugal number, since it uses more digits than its factorization.

139413371161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12364 (or 6182 counting only the distinct ones).

The product of its digits is 40824, while the sum is 40.

The spelling of 139413371161 in words is "one hundred thirty-nine billion, four hundred thirteen million, three hundred seventy-one thousand, one hundred sixty-one".