285145474 has 8 divisors (see below), whose sum is σ = 428129100. Its totient is φ = 142435776.

The previous prime is 285145457. The next prime is 285145481. The reversal of 285145474 is 474541582.

It can be written as a sum of positive squares in 2 ways, for example, as 246270249 + 38875225 = 15693^2 + 6235^2 .

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

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, 65859 + ... + 70054.

Almost surely, 2^285145474 is an apocalyptic number.

285145474 is a deficient number, since it is larger than the sum of its proper divisors (142983626).

285145474 is a wasteful number, since it uses less digits than its factorization.

285145474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136964.

The product of its digits is 179200, while the sum is 40.

The square root of 285145474 is about 16886.2510344955. The cubic root of 285145474 is about 658.1963872741.

The spelling of 285145474 in words is "two hundred eighty-five million, one hundred forty-five thousand, four hundred seventy-four".