139348902 has 64 divisors (see below), whose sum is σ = 351475200. Its totient is φ = 35777280.

The previous prime is 139348901. The next prime is 139348921. The reversal of 139348902 is 209843931.

139348902 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139348901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39424 + ... + 42812.

It is an arithmetic number, because the mean of its divisors is an integer number (5491800).

Almost surely, 2^139348902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139348902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175737600).

139348902 is an abundant number, since it is smaller than the sum of its proper divisors (212126298).

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

139348902 is a wasteful number, since it uses less digits than its factorization.

139348902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3501.

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 139348902 is about 11804.6135896098. The cubic root of 139348902 is about 518.4432013346.

The spelling of 139348902 in words is "one hundred thirty-nine million, three hundred forty-eight thousand, nine hundred two".