285137068 has 6 divisors (see below), whose sum is σ = 498989876. Its totient is φ = 142568532.

The previous prime is 285136993. The next prime is 285137071. The reversal of 285137068 is 860731582.

It is a super-3 number, since 3×285137068³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 285137068.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35642130 + ... + 35642137.

Almost surely, 2^285137068 is an apocalyptic number.

It is an amenable number.

285137068 is a deficient number, since it is larger than the sum of its proper divisors (213852808).

285137068 is a wasteful number, since it uses less digits than its factorization.

285137068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71284271 (or 71284269 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 285137068 is about 16886.0021319435. The cubic root of 285137068 is about 658.1899194022.

The spelling of 285137068 in words is "two hundred eighty-five million, one hundred thirty-seven thousand, sixty-eight".