3133809 has 20 divisors (see below), whose sum is σ = 5351104. Its totient is φ = 1790424.

The previous prime is 3133799. The next prime is 3133811. The reversal of 3133809 is 9083313.

It is not a de Polignac number, because 3133809 - 2⁵ = 3133777 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3133609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2197 + ... + 3330.

Almost surely, 2^3133809 is an apocalyptic number.

It is an amenable number.

3133809 is a deficient number, since it is larger than the sum of its proper divisors (2217295).

3133809 is an equidigital number, since it uses as much as digits as its factorization.

3133809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5546 (or 5537 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 3133809 is about 1770.2567610378. The cubic root of 3133809 is about 146.3381322839.

The spelling of 3133809 in words is "three million, one hundred thirty-three thousand, eight hundred nine".