495138 has 16 divisors (see below), whose sum is σ = 1131840. Its totient is φ = 141456.

The previous prime is 495133. The next prime is 495139. The reversal of 495138 is 831594.

It is a Curzon number.

It is a nialpdrome in base 14.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 495138.

It is not an unprimeable number, because it can be changed into a prime (495133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5853 + ... + 5936.

It is an arithmetic number, because the mean of its divisors is an integer number (70740).

2⁴⁹⁵¹³⁸ is an apocalyptic number.

495138 is an abundant number, since it is smaller than the sum of its proper divisors (636702).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

495138 is a wasteful number, since it uses less digits than its factorization.

495138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11801.

The product of its digits is 4320, while the sum is 30.

The square root of 495138 is about 703.6604294686. The cubic root of 495138 is about 79.1119493861. Note that the first 3 decimals are identical.

The spelling of 495138 in words is "four hundred ninety-five thousand, one hundred thirty-eight".