499123 has 4 divisors (see below), whose sum is σ = 520848. Its totient is φ = 477400.

The previous prime is 499117. The next prime is 499127. The reversal of 499123 is 321994.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321994 = 2 ⋅160997.

It is a cyclic number.

It is not a de Polignac number, because 499123 - 2⁹ = 498611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 499091 and 499100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10828 + ... + 10873.

It is an arithmetic number, because the mean of its divisors is an integer number (130212).

2⁴⁹⁹¹²³ is an apocalyptic number.

499123 is a deficient number, since it is larger than the sum of its proper divisors (21725).

499123 is a wasteful number, since it uses less digits than its factorization.

499123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21724.

The product of its digits is 1944, while the sum is 28.

The square root of 499123 is about 706.4863763725. The cubic root of 499123 is about 79.3236204164.

The spelling of 499123 in words is "four hundred ninety-nine thousand, one hundred twenty-three".