1248685 has 4 divisors (see below), whose sum is σ = 1498428. Its totient is φ = 998944.

The previous prime is 1248673. The next prime is 1248691. The reversal of 1248685 is 5868421.

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

It can be written as a sum of positive squares in 2 ways, for example, as 866761 + 381924 = 931^2 + 618^2 .

It is a cyclic number.

It is not a de Polignac number, because 1248685 - 2¹⁵ = 1215917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1248685.

It is a congruent number.

It is an unprimeable number.

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, 124864 + ... + 124873.

It is an arithmetic number, because the mean of its divisors is an integer number (374607).

2^1248685 is an apocalyptic number.

It is an amenable number.

1248685 is a deficient number, since it is larger than the sum of its proper divisors (249743).

1248685 is an equidigital number, since it uses as much as digits as its factorization.

1248685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249742.

The product of its digits is 15360, while the sum is 34.

The square root of 1248685 is about 1117.4457481238. The cubic root of 1248685 is about 107.6839468261.

The spelling of 1248685 in words is "one million, two hundred forty-eight thousand, six hundred eighty-five".