103186393 has 2 divisors, whose sum is σ = 103186394. Its totient is φ = 103186392.

The previous prime is 103186313. The next prime is 103186399. The reversal of 103186393 is 393681301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61027344 + 42159049 = 7812^2 + 6493^2 .

It is a cyclic number.

It is not a de Polignac number, because 103186393 - 2⁹ = 103185881 is a prime.

It is not a weakly prime, because it can be changed into another prime (103186399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51593196 + 51593197.

It is an arithmetic number, because the mean of its divisors is an integer number (51593197).

Almost surely, 2^103186393 is an apocalyptic number.

It is an amenable number.

103186393 is a deficient number, since it is larger than the sum of its proper divisors (1).

103186393 is an equidigital number, since it uses as much as digits as its factorization.

103186393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 103186393 is about 10158.0703384058. The cubic root of 103186393 is about 469.0374036481.

The spelling of 103186393 in words is "one hundred three million, one hundred eighty-six thousand, three hundred ninety-three".