169533009 has 6 divisors (see below), whose sum is σ = 244881026. Its totient is φ = 113022000.

The previous prime is 169532983. The next prime is 169533031. The reversal of 169533009 is 900335961.

169533009 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 only one way, i.e., 121881600 + 47651409 = 11040^2 + 6903^2 .

It is not a de Polignac number, because 169533009 - 2¹⁵ = 169500241 is a prime.

It is a super-2 number, since 2×169533009² = 57482882281188162, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (169533209) 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, 9418492 + ... + 9418509.

Almost surely, 2^169533009 is an apocalyptic number.

It is an amenable number.

169533009 is a deficient number, since it is larger than the sum of its proper divisors (75348017).

169533009 is a wasteful number, since it uses less digits than its factorization.

169533009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18837007 (or 18837004 counting only the distinct ones).

The product of its (nonzero) digits is 21870, while the sum is 36.

The square root of 169533009 is about 13020.4842075861. The cubic root of 169533009 is about 553.4581113659.

The spelling of 169533009 in words is "one hundred sixty-nine million, five hundred thirty-three thousand, nine".