3143309 has 4 divisors (see below), whose sum is σ = 3385116. Its totient is φ = 2901504.

The previous prime is 3143299. The next prime is 3143323. The reversal of 3143309 is 9033413.

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 1755625 + 1387684 = 1325^2 + 1178^2 .

It is a cyclic number.

It is not a de Polignac number, because 3143309 - 2⁸ = 3143053 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3143389) 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, 120884 + ... + 120909.

It is an arithmetic number, because the mean of its divisors is an integer number (846279).

Almost surely, 2^3143309 is an apocalyptic number.

It is an amenable number.

3143309 is a deficient number, since it is larger than the sum of its proper divisors (241807).

3143309 is a wasteful number, since it uses less digits than its factorization.

3143309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241806.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 3143309 is about 1772.9379571773. The cubic root of 3143309 is about 146.4858555848.

The spelling of 3143309 in words is "three million, one hundred forty-three thousand, three hundred nine".