139382901091 has 4 divisors (see below), whose sum is σ = 159294744112. Its totient is φ = 119471058072.

The previous prime is 139382901089. The next prime is 139382901109. The reversal of 139382901091 is 190109283931.

139382901091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 139382901091 - 2¹ = 139382901089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139382901191) 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 3 ways as a sum of consecutive naturals, for example, 9955921500 + ... + 9955921513.

It is an arithmetic number, because the mean of its divisors is an integer number (39823686028).

Almost surely, 2^139382901091 is an apocalyptic number.

139382901091 is a deficient number, since it is larger than the sum of its proper divisors (19911843021).

139382901091 is an equidigital number, since it uses as much as digits as its factorization.

139382901091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19911843020.

The product of its (nonzero) digits is 104976, while the sum is 46.

The spelling of 139382901091 in words is "one hundred thirty-nine billion, three hundred eighty-two million, nine hundred one thousand, ninety-one".