167813 has 4 divisors (see below), whose sum is σ = 171948. Its totient is φ = 163680.

The previous prime is 167809. The next prime is 167861. The reversal of 167813 is 318761.

167813 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, and also an emirpimes, since its reverse is a distinct semiprime: 318761 = 151 ⋅2111.

It can be written as a sum of positive squares in 2 ways, for example, as 33124 + 134689 = 182^2 + 367^2 .

It is a cyclic number.

It is not a de Polignac number, because 167813 - 2² = 167809 is a prime.

It is a super-2 number, since 2×167813² = 56322405938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (167863) 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, 2006 + ... + 2087.

It is an arithmetic number, because the mean of its divisors is an integer number (42987).

2¹⁶⁷⁸¹³ is an apocalyptic number.

It is an amenable number.

167813 is a deficient number, since it is larger than the sum of its proper divisors (4135).

167813 is an equidigital number, since it uses as much as digits as its factorization.

167813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4134.

The product of its digits is 1008, while the sum is 26.

The square root of 167813 is about 409.6498504821. The cubic root of 167813 is about 55.1580029577.

The spelling of 167813 in words is "one hundred sixty-seven thousand, eight hundred thirteen".