285184485 has 24 divisors (see below), whose sum is σ = 504840960. Its totient is φ = 148861152.

The previous prime is 285184453. The next prime is 285184513. The reversal of 285184485 is 584481582.

It is not a de Polignac number, because 285184485 - 2⁵ = 285184453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 285184485.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65305 + ... + 69534.

It is an arithmetic number, because the mean of its divisors is an integer number (21035040).

Almost surely, 2^285184485 is an apocalyptic number.

It is an amenable number.

285184485 is a deficient number, since it is larger than the sum of its proper divisors (219656475).

285184485 is a wasteful number, since it uses less digits than its factorization.

285184485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134897 (or 134894 counting only the distinct ones).

The product of its digits is 409600, while the sum is 45.

The square root of 285184485 is about 16887.4061063267. The cubic root of 285184485 is about 658.2264020452.

The spelling of 285184485 in words is "two hundred eighty-five million, one hundred eighty-four thousand, four hundred eighty-five".