861132 has 12 divisors (see below), whose sum is σ = 2009336. Its totient is φ = 287040.

The previous prime is 861131. The next prime is 861139. The reversal of 861132 is 231168.

861132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 861099 and 861108.

It is not an unprimeable number, because it can be changed into a prime (861131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35869 + ... + 35892.

2⁸⁶¹¹³² is an apocalyptic number.

It is an amenable number.

861132 is an abundant number, since it is smaller than the sum of its proper divisors (1148204).

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

861132 is a wasteful number, since it uses less digits than its factorization.

861132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71768 (or 71766 counting only the distinct ones).

The product of its digits is 288, while the sum is 21.

The square root of 861132 is about 927.9719823357. The cubic root of 861132 is about 95.1385605031.

The spelling of 861132 in words is "eight hundred sixty-one thousand, one hundred thirty-two".