1248813 has 24 divisors (see below), whose sum is σ = 1944800. Its totient is φ = 769824.

The previous prime is 1248809. The next prime is 1248829. The reversal of 1248813 is 3188421.

It is not a de Polignac number, because 1248813 - 2² = 1248809 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11403 + ... + 11511.

2^1248813 is an apocalyptic number.

It is an amenable number.

1248813 is a deficient number, since it is larger than the sum of its proper divisors (695987).

1248813 is a wasteful number, since it uses less digits than its factorization.

1248813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 198 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 1248813 is about 1117.5030201301. The cubic root of 1248813 is about 107.6876261832.

The spelling of 1248813 in words is "one million, two hundred forty-eight thousand, eight hundred thirteen".