499513185 has 12 divisors (see below), whose sum is σ = 865822932. Its totient is φ = 266407008.

The previous prime is 499513177. The next prime is 499513213. The reversal of 499513185 is 581315994.

499513185 is a `hidden beast` number, since 499 + 51 + 31 + 85 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 279524961 + 219988224 = 16719^2 + 14832^2 .

It is not a de Polignac number, because 499513185 - 2³ = 499513177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 11100293 = 499513185 / (4 + 9 + 9 + 5 + 1 + 3 + 1 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 499513185.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5550102 + ... + 5550191.

It is an arithmetic number, because the mean of its divisors is an integer number (72151911).

Almost surely, 2^499513185 is an apocalyptic number.

499513185 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

499513185 is a deficient number, since it is larger than the sum of its proper divisors (366309747).

499513185 is a wasteful number, since it uses less digits than its factorization.

499513185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11100304 (or 11100301 counting only the distinct ones).

The product of its digits is 194400, while the sum is 45.

The square root of 499513185 is about 22349.7916097667. The cubic root of 499513185 is about 793.4428521253.

The spelling of 499513185 in words is "four hundred ninety-nine million, five hundred thirteen thousand, one hundred eighty-five".