810132 has 12 divisors (see below), whose sum is σ = 1890336. Its totient is φ = 270040.

The previous prime is 810109. The next prime is 810137. The reversal of 810132 is 231018.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810137) by changing a digit.

810132 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33744 + ... + 33767.

It is an arithmetic number, because the mean of its divisors is an integer number (157528).

2⁸¹⁰¹³² is an apocalyptic number.

It is an amenable number.

810132 is an abundant number, since it is smaller than the sum of its proper divisors (1080204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

810132 is a wasteful number, since it uses less digits than its factorization.

810132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67518 (or 67516 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 810132 is about 900.0733303459. The cubic root of 810132 is about 93.2220385417. Note that the first 3 decimals are identical.

The spelling of 810132 in words is "eight hundred ten thousand, one hundred thirty-two".