1248005 has 8 divisors (see below), whose sum is σ = 1633824. Its totient is φ = 907600.

The previous prime is 1248001. The next prime is 1248007. The reversal of 1248005 is 5008421.

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

It is not a de Polignac number, because 1248005 - 2² = 1248001 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 (1248001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11291 + ... + 11400.

It is an arithmetic number, because the mean of its divisors is an integer number (204228).

2^1248005 is an apocalyptic number.

It is an amenable number.

1248005 is a deficient number, since it is larger than the sum of its proper divisors (385819).

1248005 is a wasteful number, since it uses less digits than its factorization.

1248005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22707.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1248005 is about 1117.1414413583. The cubic root of 1248005 is about 107.6643960239.

The spelling of 1248005 in words is "one million, two hundred forty-eight thousand, five".