103440193 has 2 divisors, whose sum is σ = 103440194. Its totient is φ = 103440192.

The previous prime is 103440191. The next prime is 103440209. The reversal of 103440193 is 391044301.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82573569 + 20866624 = 9087^2 + 4568^2 .

It is a cyclic number.

It is not a de Polignac number, because 103440193 - 2¹ = 103440191 is a prime.

Together with 103440191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (103440191) 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, 51720096 + 51720097.

It is an arithmetic number, because the mean of its divisors is an integer number (51720097).

Almost surely, 2^103440193 is an apocalyptic number.

It is an amenable number.

103440193 is a deficient number, since it is larger than the sum of its proper divisors (1).

103440193 is an equidigital number, since it uses as much as digits as its factorization.

103440193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 103440193 is about 10170.5551962516. Note that the first 3 decimals coincide. The cubic root of 103440193 is about 469.4216410892.

Adding to 103440193 its reverse (391044301), we get a palindrome (494484494).

The spelling of 103440193 in words is "one hundred three million, four hundred forty thousand, one hundred ninety-three".