495081 has 6 divisors (see below), whose sum is σ = 715130. Its totient is φ = 330048.

The previous prime is 495071. The next prime is 495109. The reversal of 495081 is 180594.

It can be written as a sum of positive squares in only one way, i.e., 467856 + 27225 = 684^2 + 165^2 .

It is not a de Polignac number, because 495081 - 2⁶ = 495017 is a prime.

It is a super-2 number, since 2×495081² = 490210393122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

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

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27496 + ... + 27513.

2⁴⁹⁵⁰⁸¹ is an apocalyptic number.

It is an amenable number.

495081 is a deficient number, since it is larger than the sum of its proper divisors (220049).

495081 is a wasteful number, since it uses less digits than its factorization.

495081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55015 (or 55012 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 495081 is about 703.6199258122. The cubic root of 495081 is about 79.1089134956.

The spelling of 495081 in words is "four hundred ninety-five thousand, eighty-one".