285714149 has 12 divisors (see below), whose sum is σ = 338635404. Its totient is φ = 240274944.

The previous prime is 285714133. The next prime is 285714157. The reversal of 285714149 is 941417582.

It can be written as a sum of positive squares in 2 ways, for example, as 221473924 + 64240225 = 14882^2 + 8015^2 .

It is not a de Polignac number, because 285714149 - 2⁴ = 285714133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285714109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52412 + ... + 57605.

It is an arithmetic number, because the mean of its divisors is an integer number (28219617).

Almost surely, 2^285714149 is an apocalyptic number.

It is an amenable number.

285714149 is a deficient number, since it is larger than the sum of its proper divisors (52921255).

285714149 is a wasteful number, since it uses less digits than its factorization.

285714149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110084 (or 110077 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The square root of 285714149 is about 16903.0810505067. The cubic root of 285714149 is about 658.6336509562.

The spelling of 285714149 in words is "two hundred eighty-five million, seven hundred fourteen thousand, one hundred forty-nine".