284816149 has 2 divisors, whose sum is σ = 284816150. Its totient is φ = 284816148.

The previous prime is 284816141. The next prime is 284816159. The reversal of 284816149 is 941618482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282475249 + 2340900 = 16807^2 + 1530^2 .

It is a cyclic number.

It is not a de Polignac number, because 284816149 - 2³ = 284816141 is a prime.

It is a super-2 number, since 2×284816149² = 162240477462380402, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (284816141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142408074 + 142408075.

It is an arithmetic number, because the mean of its divisors is an integer number (142408075).

Almost surely, 2^284816149 is an apocalyptic number.

It is an amenable number.

284816149 is a deficient number, since it is larger than the sum of its proper divisors (1).

284816149 is an equidigital number, since it uses as much as digits as its factorization.

284816149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110592, while the sum is 43.

The square root of 284816149 is about 16876.4969410124. The cubic root of 284816149 is about 657.9428979189.

The spelling of 284816149 in words is "two hundred eighty-four million, eight hundred sixteen thousand, one hundred forty-nine".