162129 has 16 divisors (see below), whose sum is σ = 250560. Its totient is φ = 92480.

The previous prime is 162119. The next prime is 162143. The reversal of 162129 is 921261.

162129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 162129 - 2⁸ = 161873 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9529 + ... + 9545.

It is an arithmetic number, because the mean of its divisors is an integer number (15660).

2¹⁶²¹²⁹ is an apocalyptic number.

It is an amenable number.

162129 is a deficient number, since it is larger than the sum of its proper divisors (88431).

162129 is an equidigital number, since it uses as much as digits as its factorization.

162129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65 (or 31 counting only the distinct ones).

The product of its digits is 216, while the sum is 21.

The square root of 162129 is about 402.6524555991. The cubic root of 162129 is about 54.5280836099.

It can be divided in two parts, 16 and 2129, that added together give a triangular number (2145 = T₆₅).

The spelling of 162129 in words is "one hundred sixty-two thousand, one hundred twenty-nine".