1273163 has 4 divisors (see below), whose sum is σ = 1276248. Its totient is φ = 1270080.

The previous prime is 1273159. The next prime is 1273199. The reversal of 1273163 is 3613721.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1273163 - 2² = 1273159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1273463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806 + ... + 1787.

It is an arithmetic number, because the mean of its divisors is an integer number (319062).

2^1273163 is an apocalyptic number.

1273163 is a deficient number, since it is larger than the sum of its proper divisors (3085).

1273163 is an equidigital number, since it uses as much as digits as its factorization.

1273163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3084.

The product of its digits is 756, while the sum is 23.

The square root of 1273163 is about 1128.3452485831. The cubic root of 1273163 is about 108.3830420135.

Adding to 1273163 its reverse (3613721), we get a palindrome (4886884).

The spelling of 1273163 in words is "one million, two hundred seventy-three thousand, one hundred sixty-three".