168312803 has 4 divisors (see below), whose sum is σ = 168373800. Its totient is φ = 168251808.

The previous prime is 168312799. The next prime is 168312817. The reversal of 168312803 is 308213861.

It is a happy number.

168312803 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 168312803 - 2² = 168312799 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168312803.

It is not an unprimeable number, because it can be changed into a prime (168312863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26153 + ... + 31946.

It is an arithmetic number, because the mean of its divisors is an integer number (42093450).

Almost surely, 2^168312803 is an apocalyptic number.

168312803 is a deficient number, since it is larger than the sum of its proper divisors (60997).

168312803 is an equidigital number, since it uses as much as digits as its factorization.

168312803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60996.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 168312803 is about 12973.5424229468. The cubic root of 168312803 is about 552.1270831729.

The spelling of 168312803 in words is "one hundred sixty-eight million, three hundred twelve thousand, eight hundred three".