981132 has 12 divisors (see below), whose sum is σ = 2289336. Its totient is φ = 327040.

The previous prime is 981091. The next prime is 981133. The reversal of 981132 is 231189.

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

It is a super-3 number, since 3×981132³ = 2833371861711395904, which contains 333 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 981132.

It is not an unprimeable number, because it can be changed into a prime (981133) 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 3 ways as a sum of consecutive naturals, for example, 40869 + ... + 40892.

It is an arithmetic number, because the mean of its divisors is an integer number (190778).

2⁹⁸¹¹³² is an apocalyptic number.

It is an amenable number.

981132 is an abundant number, since it is smaller than the sum of its proper divisors (1308204).

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

981132 is a wasteful number, since it uses less digits than its factorization.

981132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81768 (or 81766 counting only the distinct ones).

The product of its digits is 432, while the sum is 24.

The square root of 981132 is about 990.5210749903. The cubic root of 981132 is about 99.3670691032.

Subtracting from 981132 its product of digits (432), we obtain a triangular number (980700 = T₁₄₀₀).

The spelling of 981132 in words is "nine hundred eighty-one thousand, one hundred thirty-two".