284149 has 2 divisors, whose sum is σ = 284150. Its totient is φ = 284148.

The previous prime is 284131. The next prime is 284153. The reversal of 284149 is 941482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 280900 + 3249 = 530^2 + 57^2 .

It is a cyclic number.

It is not a de Polignac number, because 284149 - 2⁵ = 284117 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (284129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142074 + 142075.

It is an arithmetic number, because the mean of its divisors is an integer number (142075).

2²⁸⁴¹⁴⁹ is an apocalyptic number.

It is an amenable number.

284149 is a deficient number, since it is larger than the sum of its proper divisors (1).

284149 is an equidigital number, since it uses as much as digits as its factorization.

284149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 28.

The square root of 284149 is about 533.0562822067. The cubic root of 284149 is about 65.7428777820.

The spelling of 284149 in words is "two hundred eighty-four thousand, one hundred forty-nine".