103210139 has 2 divisors, whose sum is σ = 103210140. Its totient is φ = 103210138.

The previous prime is 103210127. The next prime is 103210153. The reversal of 103210139 is 931012301.

It is a weak prime.

It is an emirp because it is prime and its reverse (931012301) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103210139 is a prime.

It is a super-3 number, since 3×103210139³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103210139.

It is not a weakly prime, because it can be changed into another prime (103210199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51605069 + 51605070.

It is an arithmetic number, because the mean of its divisors is an integer number (51605070).

Almost surely, 2^103210139 is an apocalyptic number.

103210139 is a deficient number, since it is larger than the sum of its proper divisors (1).

103210139 is an equidigital number, since it uses as much as digits as its factorization.

103210139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 103210139 is about 10159.2390955229. The cubic root of 103210139 is about 469.0733803165.

The spelling of 103210139 in words is "one hundred three million, two hundred ten thousand, one hundred thirty-nine".