163474 has 4 divisors (see below), whose sum is σ = 245214. Its totient is φ = 81736.

The previous prime is 163469. The next prime is 163477. The reversal of 163474 is 474361.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 474361 = 523 ⋅907.

It can be written as a sum of positive squares in only one way, i.e., 154449 + 9025 = 393^2 + 95^2 .

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

It is not an unprimeable number, because it can be changed into a prime (163477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40867 + ... + 40870.

2¹⁶³⁴⁷⁴ is an apocalyptic number.

163474 is a deficient number, since it is larger than the sum of its proper divisors (81740).

163474 is an equidigital number, since it uses as much as digits as its factorization.

163474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81739.

The product of its digits is 2016, while the sum is 25.

The square root of 163474 is about 404.3191808460. The cubic root of 163474 is about 54.6784543950.

The spelling of 163474 in words is "one hundred sixty-three thousand, four hundred seventy-four".