495149 has 2 divisors, whose sum is σ = 495150. Its totient is φ = 495148.

The previous prime is 495139. The next prime is 495151. The reversal of 495149 is 941594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 310249 + 184900 = 557^2 + 430^2 .

It is a cyclic number.

It is not a de Polignac number, because 495149 - 2⁴ = 495133 is a prime.

Together with 495151, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (495109) 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 as a sum of consecutive naturals, namely, 247574 + 247575.

It is an arithmetic number, because the mean of its divisors is an integer number (247575).

2⁴⁹⁵¹⁴⁹ is an apocalyptic number.

It is an amenable number.

495149 is a deficient number, since it is larger than the sum of its proper divisors (1).

495149 is an equidigital number, since it uses as much as digits as its factorization.

495149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 32.

The square root of 495149 is about 703.6682456954. The cubic root of 495149 is about 79.1125352328.

The spelling of 495149 in words is "four hundred ninety-five thousand, one hundred forty-nine".