1272803 has 8 divisors (see below), whose sum is σ = 1461600. Its totient is φ = 1085760.

The previous prime is 1272749. The next prime is 1272811. The reversal of 1272803 is 3082721.

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 1272803 - 2⁸ = 1272547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1272833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2183 + ... + 2703.

It is an arithmetic number, because the mean of its divisors is an integer number (182700).

2^1272803 is an apocalyptic number.

1272803 is a deficient number, since it is larger than the sum of its proper divisors (188797).

1272803 is an equidigital number, since it uses as much as digits as its factorization.

1272803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 1272803 is about 1128.1857116628. The cubic root of 1272803 is about 108.3728255753.

The spelling of 1272803 in words is "one million, two hundred seventy-two thousand, eight hundred three".