285743146 has 8 divisors (see below), whose sum is σ = 461585124. Its totient is φ = 131881440.

The previous prime is 285743113. The next prime is 285743197. The reversal of 285743146 is 641347582.

It can be written as a sum of positive squares in 2 ways, for example, as 280730025 + 5013121 = 16755^2 + 2239^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 285743099 and 285743108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5495035 + ... + 5495086.

Almost surely, 2^285743146 is an apocalyptic number.

285743146 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

285743146 is a deficient number, since it is larger than the sum of its proper divisors (175841978).

285743146 is a wasteful number, since it uses less digits than its factorization.

285743146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10990136.

The product of its digits is 161280, while the sum is 40.

The square root of 285743146 is about 16903.9387717774. The cubic root of 285743146 is about 658.6559316798.

The spelling of 285743146 in words is "two hundred eighty-five million, seven hundred forty-three thousand, one hundred forty-six".