167881 has 8 divisors (see below), whose sum is σ = 198720. Its totient is φ = 138768.

The previous prime is 167879. The next prime is 167887. The reversal of 167881 is 188761.

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

It is not a de Polignac number, because 167881 - 2¹ = 167879 is a prime.

It is a super-2 number, since 2×167881² = 56368060322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (167887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211 + ... + 616.

It is an arithmetic number, because the mean of its divisors is an integer number (24840).

2¹⁶⁷⁸⁸¹ is an apocalyptic number.

It is an amenable number.

167881 is a deficient number, since it is larger than the sum of its proper divisors (30839).

167881 is an equidigital number, since it uses as much as digits as its factorization.

167881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863.

The product of its digits is 2688, while the sum is 31.

The square root of 167881 is about 409.7328397871. The cubic root of 167881 is about 55.1654521972.

Adding to 167881 its product of digits (2688), we get a square (170569 = 413²).

The spelling of 167881 in words is "one hundred sixty-seven thousand, eight hundred eighty-one".