1287248 has 20 divisors (see below), whose sum is σ = 2553408. Its totient is φ = 628320.

The previous prime is 1287239. The next prime is 1287289. The reversal of 1287248 is 8427821.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248 + ... + 1623.

2^1287248 is an apocalyptic number.

It is an amenable number.

1287248 is a deficient number, since it is larger than the sum of its proper divisors (1266160).

1287248 is a wasteful number, since it uses less digits than its factorization.

1287248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1922 (or 1916 counting only the distinct ones).

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

The square root of 1287248 is about 1134.5695218892. The cubic root of 1287248 is about 108.7812575847.

The spelling of 1287248 in words is "one million, two hundred eighty-seven thousand, two hundred forty-eight".