1248775 has 24 divisors (see below), whose sum is σ = 1785600. Its totient is φ = 856800.

The previous prime is 1248757. The next prime is 1248781. The reversal of 1248775 is 5778421.

It is a happy number.

It is not a de Polignac number, because 1248775 - 2¹⁹ = 724487 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1248775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5106 + ... + 5344.

It is an arithmetic number, because the mean of its divisors is an integer number (74400).

2^1248775 is an apocalyptic number.

1248775 is a deficient number, since it is larger than the sum of its proper divisors (536825).

1248775 is a wasteful number, since it uses less digits than its factorization.

1248775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279 (or 274 counting only the distinct ones).

The product of its digits is 15680, while the sum is 34.

The square root of 1248775 is about 1117.4860178096. The cubic root of 1248775 is about 107.6865339003.

The spelling of 1248775 in words is "one million, two hundred forty-eight thousand, seven hundred seventy-five".