139120206 has 16 divisors (see below), whose sum is σ = 278467200. Its totient is φ = 46335608.

The previous prime is 139120193. The next prime is 139120217. The reversal of 139120206 is 602021931.

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 7 ways as a sum of consecutive naturals, for example, 876 + ... + 16703.

It is an arithmetic number, because the mean of its divisors is an integer number (17404200).

Almost surely, 2^139120206 is an apocalyptic number.

139120206 is an abundant number, since it is smaller than the sum of its proper divisors (139346994).

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

139120206 is a wasteful number, since it uses less digits than its factorization.

139120206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18903.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 139120206 is about 11794.9228908035. The cubic root of 139120206 is about 518.1594272817.

It can be divided in two parts, 13 and 9120206, that added together give a palindrome (9120219).

The spelling of 139120206 in words is "one hundred thirty-nine million, one hundred twenty thousand, two hundred six".