3139209 has 16 divisors (see below), whose sum is σ = 4680000. Its totient is φ = 2079648.

The previous prime is 3139207. The next prime is 3139231. The reversal of 3139209 is 9029313.

It is not a de Polignac number, because 3139209 - 2¹ = 3139207 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (3139207) 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 15 ways as a sum of consecutive naturals, for example, 6042 + ... + 6540.

It is an arithmetic number, because the mean of its divisors is an integer number (292500).

Almost surely, 2^3139209 is an apocalyptic number.

It is an amenable number.

3139209 is a deficient number, since it is larger than the sum of its proper divisors (1540791).

3139209 is a wasteful number, since it uses less digits than its factorization.

3139209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 3139209 is about 1771.7813070467. The cubic root of 3139209 is about 146.4221378777.

The spelling of 3139209 in words is "three million, one hundred thirty-nine thousand, two hundred nine".