139720214 has 16 divisors (see below), whose sum is σ = 216075600. Its totient is φ = 67709664.

The previous prime is 139720211. The next prime is 139720219. The reversal of 139720214 is 412027931.

139720214 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 not an unprimeable number, because it can be changed into a prime (139720211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16397 + ... + 23415.

It is an arithmetic number, because the mean of its divisors is an integer number (13504725).

Almost surely, 2^139720214 is an apocalyptic number.

139720214 is a deficient number, since it is larger than the sum of its proper divisors (76355386).

139720214 is a wasteful number, since it uses less digits than its factorization.

139720214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7327.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 139720214 is about 11820.3305368336. The cubic root of 139720214 is about 518.9032778005.

The spelling of 139720214 in words is "one hundred thirty-nine million, seven hundred twenty thousand, two hundred fourteen".