168322313 has 4 divisors (see below), whose sum is σ = 168436548. Its totient is φ = 168208080.

The previous prime is 168322279. The next prime is 168322331. The reversal of 168322313 is 313223861.

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 118309129 + 50013184 = 10877^2 + 7072^2 .

It is a cyclic number.

It is not a de Polignac number, because 168322313 - 2⁶ = 168322249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (168322333) 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, 54878 + ... + 57863.

It is an arithmetic number, because the mean of its divisors is an integer number (42109137).

Almost surely, 2^168322313 is an apocalyptic number.

It is an amenable number.

168322313 is a deficient number, since it is larger than the sum of its proper divisors (114235).

168322313 is a wasteful number, since it uses less digits than its factorization.

168322313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114234.

The product of its digits is 5184, while the sum is 29.

The square root of 168322313 is about 12973.9089329315. The cubic root of 168322313 is about 552.1374817276.

The spelling of 168322313 in words is "one hundred sixty-eight million, three hundred twenty-two thousand, three hundred thirteen".