499165 has 4 divisors (see below), whose sum is σ = 599004. Its totient is φ = 399328.

The previous prime is 499159. The next prime is 499181. The reversal of 499165 is 561994.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 561994 = 2 ⋅280997.

It can be written as a sum of positive squares in 2 ways, for example, as 161604 + 337561 = 402^2 + 581^2 .

It is a cyclic number.

It is not a de Polignac number, because 499165 - 2³ = 499157 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 499165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49912 + ... + 49921.

It is an arithmetic number, because the mean of its divisors is an integer number (149751).

2⁴⁹⁹¹⁶⁵ is an apocalyptic number.

It is an amenable number.

499165 is a deficient number, since it is larger than the sum of its proper divisors (99839).

499165 is an equidigital number, since it uses as much as digits as its factorization.

499165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99838.

The product of its digits is 9720, while the sum is 34.

The square root of 499165 is about 706.5161003119. The cubic root of 499165 is about 79.3258453179.

It can be divided in two parts, 4991 and 65, that multiplied together give a triangular number (324415 = T₈₀₅).

The spelling of 499165 in words is "four hundred ninety-nine thousand, one hundred sixty-five".