168753313 has 4 divisors (see below), whose sum is σ = 168780420. Its totient is φ = 168726208.

The previous prime is 168753301. The next prime is 168753331. The reversal of 168753313 is 313357861.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 132066064 + 36687249 = 11492^2 + 6057^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-168753313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168753353) 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, 981 + ... + 18397.

It is an arithmetic number, because the mean of its divisors is an integer number (42195105).

Almost surely, 2^168753313 is an apocalyptic number.

It is an amenable number.

168753313 is a deficient number, since it is larger than the sum of its proper divisors (27107).

168753313 is an equidigital number, since it uses as much as digits as its factorization.

168753313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27106.

The product of its digits is 45360, while the sum is 37.

The square root of 168753313 is about 12990.5085735702. The cubic root of 168753313 is about 552.6083411269.

The spelling of 168753313 in words is "one hundred sixty-eight million, seven hundred fifty-three thousand, three hundred thirteen".