1279117 has 8 divisors (see below), whose sum is σ = 1468800. Its totient is φ = 1091184.

The previous prime is 1279111. The next prime is 1279123. The reversal of 1279117 is 7119721.

It is an interprime number because it is at equal distance from previous prime (1279111) and next prime (1279123).

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 1279117 - 2¹¹ = 1277069 is a prime.

It is a super-2 number, since 2×1279117² = 3272280599378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279111) 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, 2259 + ... + 2767.

It is an arithmetic number, because the mean of its divisors is an integer number (183600).

2^1279117 is an apocalyptic number.

It is an amenable number.

1279117 is a deficient number, since it is larger than the sum of its proper divisors (189683).

1279117 is an equidigital number, since it uses as much as digits as its factorization.

1279117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875.

The product of its digits is 882, while the sum is 28.

The square root of 1279117 is about 1130.9805480202. The cubic root of 1279117 is about 108.5517319335.

The spelling of 1279117 in words is "one million, two hundred seventy-nine thousand, one hundred seventeen".