2147489 has 2 divisors, whose sum is σ = 2147490. Its totient is φ = 2147488.

The previous prime is 2147473. The next prime is 2147501. The reversal of 2147489 is 9847412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1960000 + 187489 = 1400^2 + 433^2 .

It is a cyclic number.

It is not a de Polignac number, because 2147489 - 2⁴ = 2147473 is a prime.

It is a super-2 number, since 2×2147489² = 9223418010242, which contains 22 as substring.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 4² + 7⁵ + 4² + 8⁵ + 9³ .

It is not a weakly prime, because it can be changed into another prime (2147419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073744 + 1073745.

It is an arithmetic number, because the mean of its divisors is an integer number (1073745).

2^2147489 is an apocalyptic number.

It is an amenable number.

2147489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2147489 is an equidigital number, since it uses as much as digits as its factorization.

2147489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 35.

The square root of 2147489 is about 1465.4313358189. The cubic root of 2147489 is about 129.0160226878.

The spelling of 2147489 in words is "two million, one hundred forty-seven thousand, four hundred eighty-nine".