287132 has 12 divisors (see below), whose sum is σ = 524496. Its totient is φ = 137280.

The previous prime is 287117. The next prime is 287137. The reversal of 287132 is 231782.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 287098 and 287107.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 287132.

It is not an unprimeable number, because it can be changed into a prime (287137) by changing a digit.

287132 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, 1469 + ... + 1652.

It is an arithmetic number, because the mean of its divisors is an integer number (43708).

2²⁸⁷¹³² is an apocalyptic number.

It is an amenable number.

287132 is a deficient number, since it is larger than the sum of its proper divisors (237364).

287132 is a wasteful number, since it uses less digits than its factorization.

287132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148 (or 3146 counting only the distinct ones).

The product of its digits is 672, while the sum is 23.

The square root of 287132 is about 535.8469930866. The cubic root of 287132 is about 65.9721339357.

The spelling of 287132 in words is "two hundred eighty-seven thousand, one hundred thirty-two".