499547109 has 24 divisors (see below), whose sum is σ = 686753760. Its totient is φ = 322898400.

The previous prime is 499547089. The next prime is 499547131. The reversal of 499547109 is 901745994.

It is not a de Polignac number, because 499547109 - 2⁵ = 499547077 is a prime.

It is a super-2 number, since 2×499547109² = 499094628220515762, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499547179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3308184 + ... + 3308334.

It is an arithmetic number, because the mean of its divisors is an integer number (28614740).

Almost surely, 2^499547109 is an apocalyptic number.

It is an amenable number.

499547109 is a deficient number, since it is larger than the sum of its proper divisors (187206651).

499547109 is a wasteful number, since it uses less digits than its factorization.

499547109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 499547109 is about 22350.5505301324. The cubic root of 499547109 is about 793.4608137106.

The spelling of 499547109 in words is "four hundred ninety-nine million, five hundred forty-seven thousand, one hundred nine".