1273279 has 8 divisors (see below), whose sum is σ = 1480320. Its totient is φ = 1072536.

The previous prime is 1273267. The next prime is 1273289. The reversal of 1273279 is 9723721.

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 1273279 - 2¹³ = 1265087 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 1273279.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273289) 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, 1129 + ... + 1954.

It is an arithmetic number, because the mean of its divisors is an integer number (185040).

2^1273279 is an apocalyptic number.

1273279 is a deficient number, since it is larger than the sum of its proper divisors (207041).

1273279 is an equidigital number, since it uses as much as digits as its factorization.

1273279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3149.

The product of its digits is 5292, while the sum is 31.

The square root of 1273279 is about 1128.3966501191. The cubic root of 1273279 is about 108.3863335666.

The spelling of 1273279 in words is "one million, two hundred seventy-three thousand, two hundred seventy-nine".