495001 has 12 divisors (see below), whose sum is σ = 559980. Its totient is φ = 436800.

The previous prime is 494987. The next prime is 495017. The reversal of 495001 is 100594.

It can be written as a sum of positive squares in 6 ways, for example, as 3600 + 491401 = 60^2 + 701^2 .

It is not a de Polignac number, because 495001 - 2⁷ = 494873 is a prime.

It is an Ulam number.

It is a Duffinian number.

495001 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 495001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4851 + ... + 4951.

It is an arithmetic number, because the mean of its divisors is an integer number (46665).

2⁴⁹⁵⁰⁰¹ is an apocalyptic number.

It is an amenable number.

495001 is a deficient number, since it is larger than the sum of its proper divisors (64979).

495001 is a wasteful number, since it uses less digits than its factorization.

495001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 495001 is about 703.5630746422. The cubic root of 495001 is about 79.1046522037.

Adding to 495001 its reverse (100594), we get a palindrome (595595).

It can be divided in two parts, 49 and 5001, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 495001 in words is "four hundred ninety-five thousand, one".