1248289 has 4 divisors (see below), whose sum is σ = 1426624. Its totient is φ = 1069956.

The previous prime is 1248271. The next prime is 1248323. The reversal of 1248289 is 9828421.

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.

It is a cyclic number.

It is not a de Polignac number, because 1248289 - 2⁹ = 1247777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1248209) 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 in 3 ways as a sum of consecutive naturals, for example, 89157 + ... + 89170.

It is an arithmetic number, because the mean of its divisors is an integer number (356656).

2^1248289 is an apocalyptic number.

It is an amenable number.

1248289 is a deficient number, since it is larger than the sum of its proper divisors (178335).

1248289 is an equidigital number, since it uses as much as digits as its factorization.

1248289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178334.

The product of its digits is 9216, while the sum is 34.

The square root of 1248289 is about 1117.2685442632. The cubic root of 1248289 is about 107.6725622224.

The spelling of 1248289 in words is "one million, two hundred forty-eight thousand, two hundred eighty-nine".