1248559 has 4 divisors (see below), whose sum is σ = 1344616. Its totient is φ = 1152504.

The previous prime is 1248553. The next prime is 1248563. The reversal of 1248559 is 9558421.

1248559 = 86² + 87² + ... + 163².

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1248559 - 2³ = 1248551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48009 + ... + 48034.

It is an arithmetic number, because the mean of its divisors is an integer number (336154).

2^1248559 is an apocalyptic number.

1248559 is a deficient number, since it is larger than the sum of its proper divisors (96057).

1248559 is an equidigital number, since it uses as much as digits as its factorization.

1248559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96056.

The product of its digits is 14400, while the sum is 34.

The square root of 1248559 is about 1117.3893681255. The cubic root of 1248559 is about 107.6803247133.

It can be divided in two parts, 12485 and 59, that added together give a square (12544 = 112²).

The spelling of 1248559 in words is "one million, two hundred forty-eight thousand, five hundred fifty-nine".