169000069 has 6 divisors (see below), whose sum is σ = 196591974. Its totient is φ = 144857160.

The previous prime is 169000061. The next prime is 169000103. The reversal of 169000069 is 960000961.

It can be written as a sum of positive squares in only one way, i.e., 147331044 + 21669025 = 12138^2 + 4655^2 .

It is not a de Polignac number, because 169000069 - 2³ = 169000061 is a prime.

It is a super-2 number, since 2×169000069² = 57122046644009522, which contains 22 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 169000069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169000061) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1724442 + ... + 1724539.

It is an arithmetic number, because the mean of its divisors is an integer number (32765329).

Almost surely, 2^169000069 is an apocalyptic number.

It is an amenable number.

169000069 is a deficient number, since it is larger than the sum of its proper divisors (27591905).

169000069 is an equidigital number, since it uses as much as digits as its factorization.

169000069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3448995 (or 3448988 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 169000069 is about 13000.0026538459. The cubic root of 169000069 is about 552.8775566116.

The spelling of 169000069 in words is "one hundred sixty-nine million, sixty-nine", and thus it is an aban number.