162009169 has 4 divisors (see below), whose sum is σ = 185153344. Its totient is φ = 138864996.

The previous prime is 162009139. The next prime is 162009173. The reversal of 162009169 is 961900261.

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.

It is a cyclic number.

It is not a de Polignac number, because 162009169 - 2¹¹ = 162007121 is a prime.

It is a super-2 number, since 2×162009169² = 52493941680141122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162009139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11572077 + ... + 11572090.

It is an arithmetic number, because the mean of its divisors is an integer number (46288336).

Almost surely, 2^162009169 is an apocalyptic number.

It is an amenable number.

162009169 is a deficient number, since it is larger than the sum of its proper divisors (23144175).

162009169 is an equidigital number, since it uses as much as digits as its factorization.

162009169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23144174.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 162009169 is about 12728.2822485990. The cubic root of 162009169 is about 545.1464623338.

The spelling of 162009169 in words is "one hundred sixty-two million, nine thousand, one hundred sixty-nine".