139581337902 has 16 divisors (see below), whose sum is σ = 279177379920. Its totient is φ = 46524661952.

The previous prime is 139581337901. The next prime is 139581337981. The reversal of 139581337902 is 209733185931.

139581337902 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139581337901) 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, 487293 + ... + 718760.

It is an arithmetic number, because the mean of its divisors is an integer number (17448586245).

Almost surely, 2^139581337902 is an apocalyptic number.

139581337902 is an abundant number, since it is smaller than the sum of its proper divisors (139596042018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139581337902 is a wasteful number, since it uses less digits than its factorization.

139581337902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225347.

The product of its (nonzero) digits is 1224720, while the sum is 51.

The spelling of 139581337902 in words is "one hundred thirty-nine billion, five hundred eighty-one million, three hundred thirty-seven thousand, nine hundred two".