3158609 has 2 divisors, whose sum is σ = 3158610. Its totient is φ = 3158608.

The previous prime is 3158591. The next prime is 3158629. The reversal of 3158609 is 9068513.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3097600 + 61009 = 1760^2 + 247^2 .

It is an emirp because it is prime and its reverse (9068513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3158609 - 2²⁰ = 2110033 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3158629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1579304 + 1579305.

It is an arithmetic number, because the mean of its divisors is an integer number (1579305).

Almost surely, 2^3158609 is an apocalyptic number.

It is an amenable number.

3158609 is a deficient number, since it is larger than the sum of its proper divisors (1).

3158609 is an equidigital number, since it uses as much as digits as its factorization.

3158609 is an evil number, because the sum of its binary digits is even.

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

The square root of 3158609 is about 1777.2475910801. The cubic root of 3158609 is about 146.7231434242.

The spelling of 3158609 in words is "three million, one hundred fifty-eight thousand, six hundred nine".