169000169 has 12 divisors (see below), whose sum is σ = 184830732. Its totient is φ = 154440000.

The previous prime is 169000157. The next prime is 169000211. The reversal of 169000169 is 961000961.

169000169 = 2537² + 2538² + ... + 2562².

It is a happy number.

169000169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 6310144 + 162690025 = 2512^2 + 12755^2 .

It is not a de Polignac number, because 169000169 - 2⁸ = 168999913 is a prime.

It is a super-2 number, since 2×169000169² = 57122114244057122, 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 (169000129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12119 + ... + 22019.

It is an arithmetic number, because the mean of its divisors is an integer number (15402561).

Almost surely, 2^169000169 is an apocalyptic number.

It is an amenable number.

169000169 is a deficient number, since it is larger than the sum of its proper divisors (15830563).

169000169 is a wasteful number, since it uses less digits than its factorization.

169000169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10028 (or 10015 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 169000169 is about 13000.0064999984. The cubic root of 169000169 is about 552.8776656603.

The spelling of 169000169 in words is "one hundred sixty-nine million, one hundred sixty-nine", and thus it is an aban number.