495123 has 4 divisors (see below), whose sum is σ = 660168. Its totient is φ = 330080.

The previous prime is 495119. The next prime is 495133. The reversal of 495123 is 321594.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 495123 - 2² = 495119 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 495093 and 495102.

It is not an unprimeable number, because it can be changed into a prime (495113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82518 + ... + 82523.

It is an arithmetic number, because the mean of its divisors is an integer number (165042).

2⁴⁹⁵¹²³ is an apocalyptic number.

495123 is a deficient number, since it is larger than the sum of its proper divisors (165045).

495123 is a wasteful number, since it uses less digits than its factorization.

495123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165044.

The product of its digits is 1080, while the sum is 24.

The square root of 495123 is about 703.6497708377. The cubic root of 495123 is about 79.1111504901. Note that the first 4 decimals are identical.

The spelling of 495123 in words is "four hundred ninety-five thousand, one hundred twenty-three".