139936742 has 12 divisors (see below), whose sum is σ = 230722548. Its totient is φ = 63607500.

The previous prime is 139936739. The next prime is 139936787. The reversal of 139936742 is 247639931.

139936742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 139936693 and 139936702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 288884 + ... + 289367.

It is an arithmetic number, because the mean of its divisors is an integer number (19226879).

Almost surely, 2^139936742 is an apocalyptic number.

139936742 is a deficient number, since it is larger than the sum of its proper divisors (90785806).

139936742 is a wasteful number, since it uses less digits than its factorization.

139936742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578275 (or 578264 counting only the distinct ones).

The product of its digits is 244944, while the sum is 44.

The square root of 139936742 is about 11829.4861257791. The cubic root of 139936742 is about 519.1711920241.

The spelling of 139936742 in words is "one hundred thirty-nine million, nine hundred thirty-six thousand, seven hundred forty-two".