3139289 has 4 divisors (see below), whose sum is σ = 3146880. Its totient is φ = 3131700.

The previous prime is 3139267. The next prime is 3139291. The reversal of 3139289 is 9829313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9829313 = 13 ⋅756101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3139289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3139259) 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, 3137 + ... + 4014.

It is an arithmetic number, because the mean of its divisors is an integer number (786720).

Almost surely, 2^3139289 is an apocalyptic number.

It is an amenable number.

3139289 is a deficient number, since it is larger than the sum of its proper divisors (7591).

3139289 is an equidigital number, since it uses as much as digits as its factorization.

3139289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7590.

The product of its digits is 11664, while the sum is 35.

The square root of 3139289 is about 1771.8038830525. The cubic root of 3139289 is about 146.4233816806.

The spelling of 3139289 in words is "three million, one hundred thirty-nine thousand, two hundred eighty-nine".