1280323 has 8 divisors (see below), whose sum is σ = 1405440. Its totient is φ = 1156680.

The previous prime is 1280317. The next prime is 1280333. The reversal of 1280323 is 3230821.

It is a happy number.

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 1280323 - 2⁵ = 1280291 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 1280323.

It is not an unprimeable number, because it can be changed into a prime (1280333) 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, 2386 + ... + 2872.

It is an arithmetic number, because the mean of its divisors is an integer number (175680).

2^1280323 is an apocalyptic number.

1280323 is a deficient number, since it is larger than the sum of its proper divisors (125117).

1280323 is a wasteful number, since it uses less digits than its factorization.

1280323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1280323 is about 1131.5135880757. The cubic root of 1280323 is about 108.5858367800.

The spelling of 1280323 in words is "one million, two hundred eighty thousand, three hundred twenty-three".