1248287 has 4 divisors (see below), whose sum is σ = 1250640. Its totient is φ = 1245936.

The previous prime is 1248271. The next prime is 1248323. The reversal of 1248287 is 7828421.

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 1248287 - 2⁴ = 1248271 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 (1248217) 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, 38 + ... + 1580.

It is an arithmetic number, because the mean of its divisors is an integer number (312660).

2^1248287 is an apocalyptic number.

1248287 is a deficient number, since it is larger than the sum of its proper divisors (2353).

1248287 is an equidigital number, since it uses as much as digits as its factorization.

1248287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2352.

The product of its digits is 7168, while the sum is 32.

The square root of 1248287 is about 1117.2676492229. The cubic root of 1248287 is about 107.6725047183.

The spelling of 1248287 in words is "one million, two hundred forty-eight thousand, two hundred eighty-seven".