286149 has 4 divisors (see below), whose sum is σ = 381536. Its totient is φ = 190764.

The previous prime is 286129. The next prime is 286163. The reversal of 286149 is 941682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 286149 - 2¹² = 282053 is a prime.

It is a D-number.

It is a Duffinian number.

286149 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286129) 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, 47689 + ... + 47694.

It is an arithmetic number, because the mean of its divisors is an integer number (95384).

2²⁸⁶¹⁴⁹ is an apocalyptic number.

It is an amenable number.

286149 is a deficient number, since it is larger than the sum of its proper divisors (95387).

286149 is an equidigital number, since it uses as much as digits as its factorization.

286149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95386.

The product of its digits is 3456, while the sum is 30.

The square root of 286149 is about 534.9289672471. The cubic root of 286149 is about 65.8967623826.

It can be divided in two parts, 286 and 149, that added together give a triangular number (435 = T₂₉).

The spelling of 286149 in words is "two hundred eighty-six thousand, one hundred forty-nine".