1279122 has 48 divisors (see below), whose sum is σ = 2972928. Its totient is φ = 364320.

The previous prime is 1279111. The next prime is 1279123. The reversal of 1279122 is 2219721.

Its product of digits (504) is a multiple of the sum of its prime divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 1279092 and 1279101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1279123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41247 + ... + 41277.

It is an arithmetic number, because the mean of its divisors is an integer number (61936).

2^1279122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1279122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1486464).

1279122 is an abundant number, since it is smaller than the sum of its proper divisors (1693806).

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

1279122 is a wasteful number, since it uses less digits than its factorization.

1279122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 72 counting only the distinct ones).

The product of its digits is 504, while the sum is 24.

The square root of 1279122 is about 1130.9827584893. The cubic root of 1279122 is about 108.5518733742.

The spelling of 1279122 in words is "one million, two hundred seventy-nine thousand, one hundred twenty-two".