1248811 has 4 divisors (see below), whose sum is σ = 1265992. Its totient is φ = 1231632.

The previous prime is 1248809. The next prime is 1248829. The reversal of 1248811 is 1188421.

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 1248811 - 2¹ = 1248809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1248881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8481 + ... + 8626.

It is an arithmetic number, because the mean of its divisors is an integer number (316498).

2^1248811 is an apocalyptic number.

1248811 is a deficient number, since it is larger than the sum of its proper divisors (17181).

1248811 is an equidigital number, since it uses as much as digits as its factorization.

1248811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17180.

The product of its digits is 512, while the sum is 25.

The square root of 1248811 is about 1117.5021252776. The cubic root of 1248811 is about 107.6875686952.

The spelling of 1248811 in words is "one million, two hundred forty-eight thousand, eight hundred eleven".