139308210 has 48 divisors (see below), whose sum is σ = 363032280. Its totient is φ = 37063680.

The previous prime is 139308193. The next prime is 139308241. The reversal of 139308210 is 12803931.

It can be written as a sum of positive squares in 4 ways, for example, as 139216401 + 91809 = 11799^2 + 303^2 .

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 23 ways as a sum of consecutive naturals, for example, 44290 + ... + 47330.

Almost surely, 2^139308210 is an apocalyptic number.

139308210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139308210 is an abundant number, since it is smaller than the sum of its proper divisors (223724070).

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

139308210 is a wasteful number, since it uses less digits than its factorization.

139308210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3563 (or 3560 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 139308210 is about 11802.8899003591. The cubic root of 139308210 is about 518.3927319869.

The spelling of 139308210 in words is "one hundred thirty-nine million, three hundred eight thousand, two hundred ten".