103405193 has 2 divisors, whose sum is σ = 103405194. Its totient is φ = 103405192.

The previous prime is 103405189. The next prime is 103405207. The reversal of 103405193 is 391504301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55905529 + 47499664 = 7477^2 + 6892^2 .

It is a cyclic number.

It is not a de Polignac number, because 103405193 - 2² = 103405189 is a prime.

It is not a weakly prime, because it can be changed into another prime (103405693) 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, 51702596 + 51702597.

It is an arithmetic number, because the mean of its divisors is an integer number (51702597).

Almost surely, 2^103405193 is an apocalyptic number.

It is an amenable number.

103405193 is a deficient number, since it is larger than the sum of its proper divisors (1).

103405193 is an equidigital number, since it uses as much as digits as its factorization.

103405193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 103405193 is about 10168.8343973142. The cubic root of 103405193 is about 469.3686906504.

Adding to 103405193 its reverse (391504301), we get a palindrome (494909494).

The spelling of 103405193 in words is "one hundred three million, four hundred five thousand, one hundred ninety-three".