163874 has 4 divisors (see below), whose sum is σ = 245814. Its totient is φ = 81936.

The previous prime is 163871. The next prime is 163883. The reversal of 163874 is 478361.

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., 117649 + 46225 = 343^2 + 215^2 .

It is an alternating number because its digits alternate between odd and even.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 163874.

It is not an unprimeable number, because it can be changed into a prime (163871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40967 + ... + 40970.

2¹⁶³⁸⁷⁴ is an apocalyptic number.

163874 is a deficient number, since it is larger than the sum of its proper divisors (81940).

163874 is an equidigital number, since it uses as much as digits as its factorization.

163874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81939.

The product of its digits is 4032, while the sum is 29.

The square root of 163874 is about 404.8135373230. The cubic root of 163874 is about 54.7230151349.

The spelling of 163874 in words is "one hundred sixty-three thousand, eight hundred seventy-four".