495196409 has 2 divisors, whose sum is σ = 495196410. Its totient is φ = 495196408.

The previous prime is 495196399. The next prime is 495196423. The reversal of 495196409 is 904691594.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 495196009 + 400 = 22253^2 + 20^2 .

It is a cyclic number.

It is not a de Polignac number, because 495196409 - 2⁴ = 495196393 is a prime.

It is not a weakly prime, because it can be changed into another prime (495196439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247598204 + 247598205.

It is an arithmetic number, because the mean of its divisors is an integer number (247598205).

Almost surely, 2^495196409 is an apocalyptic number.

It is an amenable number.

495196409 is a deficient number, since it is larger than the sum of its proper divisors (1).

495196409 is an equidigital number, since it uses as much as digits as its factorization.

495196409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 495196409 is about 22253.0089875504. The cubic root of 495196409 is about 791.1506007990.

The spelling of 495196409 in words is "four hundred ninety-five million, one hundred ninety-six thousand, four hundred nine".