287125 has 8 divisors (see below), whose sum is σ = 358488. Its totient is φ = 229600.

The previous prime is 287117. The next prime is 287137. The reversal of 287125 is 521782.

It can be written as a sum of positive squares in 4 ways, for example, as 14641 + 272484 = 121^2 + 522^2 .

It is not a de Polignac number, because 287125 - 2³ = 287117 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 287125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1024 + ... + 1273.

It is an arithmetic number, because the mean of its divisors is an integer number (44811).

2²⁸⁷¹²⁵ is an apocalyptic number.

287125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

287125 is a deficient number, since it is larger than the sum of its proper divisors (71363).

287125 is an equidigital number, since it uses as much as digits as its factorization.

287125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312 (or 2302 counting only the distinct ones).

The product of its digits is 1120, while the sum is 25.

The square root of 287125 is about 535.8404613315. The cubic root of 287125 is about 65.9715978191.

The spelling of 287125 in words is "two hundred eighty-seven thousand, one hundred twenty-five".