4196509 has 2 divisors, whose sum is σ = 4196510. Its totient is φ = 4196508.

The previous prime is 4196497. The next prime is 4196513. The reversal of 4196509 is 9056914.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2732409 + 1464100 = 1653^2 + 1210^2 .

It is a cyclic number.

It is not a de Polignac number, because 4196509 - 2¹⁵ = 4163741 is a prime.

It is a super-2 number, since 2×4196509² = 35221375574162, which contains 22 as substring.

4196509 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4196809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2098254 + 2098255.

It is an arithmetic number, because the mean of its divisors is an integer number (2098255).

Almost surely, 2^4196509 is an apocalyptic number.

It is an amenable number.

4196509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4196509 is an equidigital number, since it uses as much as digits as its factorization.

4196509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 4196509 is about 2048.5382593449. The cubic root of 4196509 is about 161.2981499939.

The spelling of 4196509 in words is "four million, one hundred ninety-six thousand, five hundred nine".