3145489 has 2 divisors, whose sum is σ = 3145490. Its totient is φ = 3145488.

The previous prime is 3145487. The next prime is 3145511. The reversal of 3145489 is 9845413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1669264 + 1476225 = 1292^2 + 1215^2 .

It is a cyclic number.

It is not a de Polignac number, because 3145489 - 2¹ = 3145487 is a prime.

Together with 3145487, it forms a pair of twin primes.

It is an Ulam number.

3145489 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3145487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1572744 + 1572745.

It is an arithmetic number, because the mean of its divisors is an integer number (1572745).

Almost surely, 2^3145489 is an apocalyptic number.

It is an amenable number.

3145489 is a deficient number, since it is larger than the sum of its proper divisors (1).

3145489 is an equidigital number, since it uses as much as digits as its factorization.

3145489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 3145489 is about 1773.5526493454. The cubic root of 3145489 is about 146.5197121957.

The spelling of 3145489 in words is "three million, one hundred forty-five thousand, four hundred eighty-nine".