164474 has 4 divisors (see below), whose sum is σ = 246714. Its totient is φ = 82236.

The previous prime is 164471. The next prime is 164477. The reversal of 164474 is 474461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 474461 = 13 ⋅36497.

It is an interprime number because it is at equal distance from previous prime (164471) and next prime (164477).

It can be written as a sum of positive squares in only one way, i.e., 94249 + 70225 = 307^2 + 265^2 .

It is a plaindrome in base 15.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 164474.

It is not an unprimeable number, because it can be changed into a prime (164471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41117 + ... + 41120.

2¹⁶⁴⁴⁷⁴ is an apocalyptic number.

164474 is a deficient number, since it is larger than the sum of its proper divisors (82240).

164474 is an equidigital number, since it uses as much as digits as its factorization.

164474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82239.

The product of its digits is 2688, while the sum is 26.

The square root of 164474 is about 405.5539421581. The cubic root of 164474 is about 54.7897204865.

The spelling of 164474 in words is "one hundred sixty-four thousand, four hundred seventy-four".