139080942 has 256 divisors, whose sum is σ = 433520640. Its totient is φ = 31881600.

The previous prime is 139080881. The next prime is 139080959. The reversal of 139080942 is 249080931.

It is a junction number, because it is equal to n+sod(n) for n = 139080897 and 139080906.

It is a congruent number.

It is an unprimeable number.

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 127 ways as a sum of consecutive naturals, for example, 1675633 + ... + 1675715.

It is an arithmetic number, because the mean of its divisors is an integer number (1693440).

Almost surely, 2^139080942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139080942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216760320).

139080942 is an abundant number, since it is smaller than the sum of its proper divisors (294439698).

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

139080942 is a wasteful number, since it uses less digits than its factorization.

139080942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 139080942 is about 11793.2583283841. The cubic root of 139080942 is about 518.1106758539.

The spelling of 139080942 in words is "one hundred thirty-nine million, eighty thousand, nine hundred forty-two".