340316503 has 4 divisors (see below), whose sum is σ = 340999000. Its totient is φ = 339634008.

The previous prime is 340316413. The next prime is 340316521. The reversal of 340316503 is 305613043.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 340316503 - 2⁹ = 340315991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340316003) 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 in 3 ways as a sum of consecutive naturals, for example, 340500 + ... + 341497.

It is an arithmetic number, because the mean of its divisors is an integer number (85249750).

Almost surely, 2^340316503 is an apocalyptic number.

340316503 is a deficient number, since it is larger than the sum of its proper divisors (682497).

340316503 is an equidigital number, since it uses as much as digits as its factorization.

340316503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682496.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 340316503 is about 18447.6693107829. The cubic root of 340316503 is about 698.1697103503.

Adding to 340316503 its reverse (305613043), we get a palindrome (645929546).

The spelling of 340316503 in words is "three hundred forty million, three hundred sixteen thousand, five hundred three".