139310212 has 6 divisors (see below), whose sum is σ = 243792878. Its totient is φ = 69655104.

The previous prime is 139310203. The next prime is 139310221. The reversal of 139310212 is 212013931.

It is an interprime number because it is at equal distance from previous prime (139310203) and next prime (139310221).

It can be written as a sum of positive squares in only one way, i.e., 101929216 + 37380996 = 10096^2 + 6114^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17413773 + ... + 17413780.

Almost surely, 2^139310212 is an apocalyptic number.

It is an amenable number.

139310212 is a deficient number, since it is larger than the sum of its proper divisors (104482666).

139310212 is a wasteful number, since it uses less digits than its factorization.

139310212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34827557 (or 34827555 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 139310212 is about 11802.9747097924. The cubic root of 139310212 is about 518.3952152511.

The spelling of 139310212 in words is "one hundred thirty-nine million, three hundred ten thousand, two hundred twelve".