1248505 has 8 divisors (see below), whose sum is σ = 1533312. Its totient is φ = 975408.

The previous prime is 1248503. The next prime is 1248529. The reversal of 1248505 is 5058421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1248505 - 2¹ = 1248503 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1248505.

It is not an unprimeable number, because it can be changed into a prime (1248503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2689 + ... + 3118.

It is an arithmetic number, because the mean of its divisors is an integer number (191664).

2^1248505 is an apocalyptic number.

It is an amenable number.

1248505 is a deficient number, since it is larger than the sum of its proper divisors (284807).

1248505 is an equidigital number, since it uses as much as digits as its factorization.

1248505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5855.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 1248505 is about 1117.3652043983. The cubic root of 1248505 is about 107.6787723046.

The spelling of 1248505 in words is "one million, two hundred forty-eight thousand, five hundred five".