139049212 has 12 divisors (see below), whose sum is σ = 245490336. Its totient is φ = 68909120.

The previous prime is 139049189. The next prime is 139049221. The reversal of 139049212 is 212940931.

139049212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153364 + ... + 154267.

It is an arithmetic number, because the mean of its divisors is an integer number (20457528).

Almost surely, 2^139049212 is an apocalyptic number.

It is an amenable number.

139049212 is a deficient number, since it is larger than the sum of its proper divisors (106441124).

139049212 is a wasteful number, since it uses less digits than its factorization.

139049212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307748 (or 307746 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 139049212 is about 11791.9129915379. The cubic root of 139049212 is about 518.0712721756.

The spelling of 139049212 in words is "one hundred thirty-nine million, forty-nine thousand, two hundred twelve".