103208137 has 2 divisors, whose sum is σ = 103208138. Its totient is φ = 103208136.

The previous prime is 103208123. The next prime is 103208141. The reversal of 103208137 is 731802301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65028096 + 38180041 = 8064^2 + 6179^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103208137 is a prime.

It is not a weakly prime, because it can be changed into another prime (103208197) by changing a digit.

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 as a sum of consecutive naturals, namely, 51604068 + 51604069.

It is an arithmetic number, because the mean of its divisors is an integer number (51604069).

Almost surely, 2^103208137 is an apocalyptic number.

It is an amenable number.

103208137 is a deficient number, since it is larger than the sum of its proper divisors (1).

103208137 is an equidigital number, since it uses as much as digits as its factorization.

103208137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 103208137 is about 10159.1405640438. The cubic root of 103208137 is about 469.0703473748.

The spelling of 103208137 in words is "one hundred three million, two hundred eight thousand, one hundred thirty-seven".