3138289 has 16 divisors (see below), whose sum is σ = 3991680. Its totient is φ = 2396160.

The previous prime is 3138283. The next prime is 3138299. The reversal of 3138289 is 9828313.

It is a cyclic number.

It is not a de Polignac number, because 3138289 - 2⁹ = 3137777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3138283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3697 + ... + 4465.

It is an arithmetic number, because the mean of its divisors is an integer number (249480).

Almost surely, 2^3138289 is an apocalyptic number.

It is an amenable number.

3138289 is a deficient number, since it is larger than the sum of its proper divisors (853391).

3138289 is a wasteful number, since it uses less digits than its factorization.

3138289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 840.

The product of its digits is 10368, while the sum is 34.

The square root of 3138289 is about 1771.5216623005. The cubic root of 3138289 is about 146.4078326256.

The spelling of 3138289 in words is "three million, one hundred thirty-eight thousand, two hundred eighty-nine".