1248581 has 4 divisors (see below), whose sum is σ = 1262700. Its totient is φ = 1234464.

The previous prime is 1248571. The next prime is 1248589. The reversal of 1248581 is 1858421.

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 112225 + 1136356 = 335^2 + 1066^2 .

It is a cyclic number.

It is not a de Polignac number, because 1248581 - 2¹⁰ = 1247557 is a prime.

It is a super-2 number, since 2×1248581² = 3117909027122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1248589) 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, 6926 + ... + 7103.

It is an arithmetic number, because the mean of its divisors is an integer number (315675).

2^1248581 is an apocalyptic number.

It is an amenable number.

1248581 is a deficient number, since it is larger than the sum of its proper divisors (14119).

1248581 is an equidigital number, since it uses as much as digits as its factorization.

1248581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14118.

The product of its digits is 2560, while the sum is 29.

The square root of 1248581 is about 1117.3992124572. The cubic root of 1248581 is about 107.6809571632.

The spelling of 1248581 in words is "one million, two hundred forty-eight thousand, five hundred eighty-one".