164069 has 4 divisors (see below), whose sum is σ = 165120. Its totient is φ = 163020.

The previous prime is 164057. The next prime is 164071. The reversal of 164069 is 960461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 164069 - 2¹⁶ = 98533 is a prime.

It is a super-2 number, since 2×164069² = 53837273522, 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 (164039) 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, 239 + ... + 620.

It is an arithmetic number, because the mean of its divisors is an integer number (41280).

2¹⁶⁴⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

164069 is a deficient number, since it is larger than the sum of its proper divisors (1051).

164069 is an equidigital number, since it uses as much as digits as its factorization.

164069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 164069 is about 405.0543173452. The cubic root of 164069 is about 54.7447122073.

The spelling of 164069 in words is "one hundred sixty-four thousand, sixty-nine".