3124909 has 4 divisors (see below), whose sum is σ = 3209404. Its totient is φ = 3040416.

The previous prime is 3124903. The next prime is 3124943. The reversal of 3124909 is 9094213.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2449225 + 675684 = 1565^2 + 822^2 .

It is a cyclic number.

It is not a de Polignac number, because 3124909 - 2²¹ = 1027757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3124903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42192 + ... + 42265.

It is an arithmetic number, because the mean of its divisors is an integer number (802351).

Almost surely, 2^3124909 is an apocalyptic number.

It is an amenable number.

3124909 is a deficient number, since it is larger than the sum of its proper divisors (84495).

3124909 is an equidigital number, since it uses as much as digits as its factorization.

3124909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84494.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 3124909 is about 1767.7412140922. The cubic root of 3124909 is about 146.1994677736.

The spelling of 3124909 in words is "three million, one hundred twenty-four thousand, nine hundred nine".