1279005 has 32 divisors (see below), whose sum is σ = 2521344. Its totient is φ = 539136.

The previous prime is 1279001. The next prime is 1279013. The reversal of 1279005 is 5009721.

It is not a de Polignac number, because 1279005 - 2² = 1279001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 897 + ... + 1833.

It is an arithmetic number, because the mean of its divisors is an integer number (78792).

2^1279005 is an apocalyptic number.

1279005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1279005 is a deficient number, since it is larger than the sum of its proper divisors (1242339).

1279005 is a wasteful number, since it uses less digits than its factorization.

1279005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 1279005 is about 1130.9310323800. The cubic root of 1279005 is about 108.5485635632.

The spelling of 1279005 in words is "one million, two hundred seventy-nine thousand, five".