5145438285 has 24 divisors (see below), whose sum is σ = 9604819224. Its totient is φ = 2533138560.

The previous prime is 5145438269. The next prime is 5145438293. The reversal of 5145438285 is 5828345415.

5145438285 is a `hidden beast` number, since 514 + 54 + 3 + 8 + 2 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 125148969 + 5020289316 = 11187^2 + 70854^2 .

It is not a de Polignac number, because 5145438285 - 2⁴ = 5145438269 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 5145438285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4397226 + ... + 4398395.

It is an arithmetic number, because the mean of its divisors is an integer number (400200801).

Almost surely, 2^5145438285 is an apocalyptic number.

It is an amenable number.

5145438285 is a deficient number, since it is larger than the sum of its proper divisors (4459380939).

5145438285 is a wasteful number, since it uses less digits than its factorization.

5145438285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8795645 (or 8795642 counting only the distinct ones).

The product of its digits is 768000, while the sum is 45.

The square root of 5145438285 is about 71731.7104563944. The cubic root of 5145438285 is about 1726.3974712181.

The spelling of 5145438285 in words is "five billion, one hundred forty-five million, four hundred thirty-eight thousand, two hundred eighty-five".