499535109 has 6 divisors (see below), whose sum is σ = 721550726. Its totient is φ = 333023400.

The previous prime is 499535107. The next prime is 499535111. The reversal of 499535109 is 901535994.

It is a happy number.

499535109 is a `hidden beast` number, since 4 + 9 + 9 + 535 + 109 = 666.

It is an interprime number because it is at equal distance from previous prime (499535107) and next prime (499535111).

It can be written as a sum of positive squares in only one way, i.e., 497513025 + 2022084 = 22305^2 + 1422^2 .

It is not a de Polignac number, because 499535109 - 2¹ = 499535107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499535107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27751942 + ... + 27751959.

Almost surely, 2^499535109 is an apocalyptic number.

It is an amenable number.

499535109 is a deficient number, since it is larger than the sum of its proper divisors (222015617).

499535109 is a wasteful number, since it uses less digits than its factorization.

499535109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55503907 (or 55503904 counting only the distinct ones).

The product of its (nonzero) digits is 218700, while the sum is 45.

The square root of 499535109 is about 22350.2820787569. The cubic root of 499535109 is about 793.4544602183.

It can be divided in two parts, 4995 and 35109, that added together give a palindrome (40104).

The spelling of 499535109 in words is "four hundred ninety-nine million, five hundred thirty-five thousand, one hundred nine".