287102 has 4 divisors (see below), whose sum is σ = 430656. Its totient is φ = 143550.

The previous prime is 287099. The next prime is 287107. The reversal of 287102 is 201782.

It is a semiprime because it is the product of two primes.

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 287102.

It is not an unprimeable number, because it can be changed into a prime (287107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71774 + ... + 71777.

It is an arithmetic number, because the mean of its divisors is an integer number (107664).

2²⁸⁷¹⁰² is an apocalyptic number.

287102 is a deficient number, since it is larger than the sum of its proper divisors (143554).

287102 is a wasteful number, since it uses less digits than its factorization.

287102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143553.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 287102 is about 535.8189992899. The cubic root of 287102 is about 65.9698362318.

Adding to 287102 its reverse (201782), we get a palindrome (488884).

The spelling of 287102 in words is "two hundred eighty-seven thousand, one hundred two".