3139489 has 2 divisors, whose sum is σ = 3139490. Its totient is φ = 3139488.

The previous prime is 3139483. The next prime is 3139517. The reversal of 3139489 is 9849313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2512225 + 627264 = 1585^2 + 792^2 .

It is a cyclic number.

It is not a de Polignac number, because 3139489 - 2¹⁷ = 3008417 is a prime.

It is a super-2 number, since 2×3139489² = 19712782362242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3139483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1569744 + 1569745.

It is an arithmetic number, because the mean of its divisors is an integer number (1569745).

Almost surely, 2^3139489 is an apocalyptic number.

It is an amenable number.

3139489 is a deficient number, since it is larger than the sum of its proper divisors (1).

3139489 is an equidigital number, since it uses as much as digits as its factorization.

3139489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 3139489 is about 1771.8603218087. The cubic root of 3139489 is about 146.4264910953.

The spelling of 3139489 in words is "three million, one hundred thirty-nine thousand, four hundred eighty-nine".