164435 has 4 divisors (see below), whose sum is σ = 197328. Its totient is φ = 131544.

The previous prime is 164431. The next prime is 164443. The reversal of 164435 is 534461.

Added to its reverse (534461) it gives a square (698896 = 836²).

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 534461 = 197 ⋅2713.

It is a cyclic number.

It is not a de Polignac number, because 164435 - 2² = 164431 is a prime.

It is a super-3 number, since 3×164435³ = 13338409383038625, which contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164435.

It is not an unprimeable number, because it can be changed into a prime (164431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16439 + ... + 16448.

It is an arithmetic number, because the mean of its divisors is an integer number (49332).

2¹⁶⁴⁴³⁵ is an apocalyptic number.

164435 is a deficient number, since it is larger than the sum of its proper divisors (32893).

164435 is an equidigital number, since it uses as much as digits as its factorization.

164435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32892.

The product of its digits is 1440, while the sum is 23.

The square root of 164435 is about 405.5058569244. The cubic root of 164435 is about 54.7853895730.

Adding to 164435 its reverse (534461), we get a palindrome (698896).

It can be divided in two parts, 16443 and 5, that multiplied together give a triangular number (82215 = T₄₀₅).

The spelling of 164435 in words is "one hundred sixty-four thousand, four hundred thirty-five".