166874 has 4 divisors (see below), whose sum is σ = 250314. Its totient is φ = 83436.

The previous prime is 166871. The next prime is 166909. The reversal of 166874 is 478661.

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

It can be written as a sum of positive squares in only one way, i.e., 165649 + 1225 = 407^2 + 35^2 .

It is a d-powerful number, because it can be written as 1 + 6² + 8⁵ + 6² + 7⁶ + 4⁷ .

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 166874.

It is not an unprimeable number, because it can be changed into a prime (166871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41717 + ... + 41720.

2¹⁶⁶⁸⁷⁴ is an apocalyptic number.

166874 is a deficient number, since it is larger than the sum of its proper divisors (83440).

166874 is an equidigital number, since it uses as much as digits as its factorization.

166874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83439.

The product of its digits is 8064, while the sum is 32.

The square root of 166874 is about 408.5021419772. The cubic root of 166874 is about 55.0549313449.

The spelling of 166874 in words is "one hundred sixty-six thousand, eight hundred seventy-four".