3135809 has 2 divisors, whose sum is σ = 3135810. Its totient is φ = 3135808.

The previous prime is 3135773. The next prime is 3135833. The reversal of 3135809 is 9085313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2334784 + 801025 = 1528^2 + 895^2 .

It is a cyclic number.

It is not a de Polignac number, because 3135809 - 2⁸ = 3135553 is a prime.

It is not a weakly prime, because it can be changed into another prime (3135859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1567904 + 1567905.

It is an arithmetic number, because the mean of its divisors is an integer number (1567905).

Almost surely, 2^3135809 is an apocalyptic number.

It is an amenable number.

3135809 is a deficient number, since it is larger than the sum of its proper divisors (1).

3135809 is an equidigital number, since it uses as much as digits as its factorization.

3135809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 3135809 is about 1770.8215607452. The cubic root of 3135809 is about 146.3692567105.

The spelling of 3135809 in words is "three million, one hundred thirty-five thousand, eight hundred nine".