495109 has 2 divisors, whose sum is σ = 495110. Its totient is φ = 495108.

The previous prime is 495071. The next prime is 495113. The reversal of 495109 is 901594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 494209 + 900 = 703^2 + 30^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-495109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247554 + 247555.

It is an arithmetic number, because the mean of its divisors is an integer number (247555).

2⁴⁹⁵¹⁰⁹ is an apocalyptic number.

It is an amenable number.

495109 is a deficient number, since it is larger than the sum of its proper divisors (1).

495109 is an equidigital number, since it uses as much as digits as its factorization.

495109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 495109 is about 703.6398226366. The cubic root of 495109 is about 79.1104048393.

The spelling of 495109 in words is "four hundred ninety-five thousand, one hundred nine".