164469 has 8 divisors (see below), whose sum is σ = 222592. Its totient is φ = 108000.

The previous prime is 164449. The next prime is 164471. The reversal of 164469 is 964461.

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

It is not a de Polignac number, because 164469 - 2⁷ = 164341 is a prime.

It is a super-2 number, since 2×164469² = 54100103922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164419) 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, 157 + ... + 594.

It is an arithmetic number, because the mean of its divisors is an integer number (27824).

2¹⁶⁴⁴⁶⁹ is an apocalyptic number.

It is an amenable number.

164469 is a deficient number, since it is larger than the sum of its proper divisors (58123).

164469 is an equidigital number, since it uses as much as digits as its factorization.

164469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827.

The product of its digits is 5184, while the sum is 30.

The square root of 164469 is about 405.5477777032. The cubic root of 164469 is about 54.7891652794.

Adding to 164469 its product of digits (5184), we get a triangular number (169653 = T₅₈₂).

The spelling of 164469 in words is "one hundred sixty-four thousand, four hundred sixty-nine".