168340503 has 8 divisors (see below), whose sum is σ = 227615616. Its totient is φ = 110646200.

The previous prime is 168340489. The next prime is 168340553. The reversal of 168340503 is 305043861.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 168340503 - 2⁹ = 168339991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168340553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394953 + ... + 395378.

It is an arithmetic number, because the mean of its divisors is an integer number (28451952).

Almost surely, 2^168340503 is an apocalyptic number.

168340503 is a deficient number, since it is larger than the sum of its proper divisors (59275113).

168340503 is an equidigital number, since it uses as much as digits as its factorization.

168340503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790405.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 168340503 is about 12974.6099363333. The cubic root of 168340503 is about 552.1573701960.

The spelling of 168340503 in words is "one hundred sixty-eight million, three hundred forty thousand, five hundred three".