1279116 has 18 divisors (see below), whose sum is σ = 3233412. Its totient is φ = 426360.

The previous prime is 1279111. The next prime is 1279123. The reversal of 1279116 is 6119721.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1279116² = 3272275482912, which contains 22 as substring.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1279116.

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 5 ways as a sum of consecutive naturals, for example, 17730 + ... + 17801.

It is an arithmetic number, because the mean of its divisors is an integer number (179634).

2^1279116 is an apocalyptic number.

It is an amenable number.

1279116 is an abundant number, since it is smaller than the sum of its proper divisors (1954296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1279116 is a wasteful number, since it uses less digits than its factorization.

1279116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35541 (or 35536 counting only the distinct ones).

The product of its digits is 756, while the sum is 27.

The square root of 1279116 is about 1130.9801059258. The cubic root of 1279116 is about 108.5517036453.

The spelling of 1279116 in words is "one million, two hundred seventy-nine thousand, one hundred sixteen".