162909 has 12 divisors (see below), whose sum is σ = 245856. Its totient is φ = 103752.

The previous prime is 162907. The next prime is 162917. The reversal of 162909 is 909261.

It is a happy number.

It is not a de Polignac number, because 162909 - 2¹ = 162907 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187 + ... + 600.

It is an arithmetic number, because the mean of its divisors is an integer number (20488).

2¹⁶²⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

162909 is a deficient number, since it is larger than the sum of its proper divisors (82947).

162909 is a wasteful number, since it uses less digits than its factorization.

162909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816 (or 813 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 162909 is about 403.6198706704. The cubic root of 162909 is about 54.6153883285.

The spelling of 162909 in words is "one hundred sixty-two thousand, nine hundred nine".