820132 has 6 divisors (see below), whose sum is σ = 1435238. Its totient is φ = 410064.

The previous prime is 820129. The next prime is 820133. The reversal of 820132 is 231028.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 817216 + 2916 = 904^2 + 54^2 .

It is not an unprimeable number, because it can be changed into a prime (820133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102513 + ... + 102520.

2⁸²⁰¹³² is an apocalyptic number.

It is an amenable number.

820132 is a deficient number, since it is larger than the sum of its proper divisors (615106).

820132 is a wasteful number, since it uses less digits than its factorization.

820132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205037 (or 205035 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 820132 is about 905.6113956880. The cubic root of 820132 is about 93.6040383482.

The spelling of 820132 in words is "eight hundred twenty thousand, one hundred thirty-two".