1279136 has 24 divisors (see below), whose sum is σ = 2558304. Its totient is φ = 629440.

The previous prime is 1279133. The next prime is 1279141. The reversal of 1279136 is 6319721.

1279136 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1279099 and 1279108.

It is not an unprimeable number, because it can be changed into a prime (1279133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1991 + ... + 2553.

It is an arithmetic number, because the mean of its divisors is an integer number (106596).

2^1279136 is an apocalyptic number.

1279136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1279136 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1279136 is an equidigital number, since it uses as much as digits as its factorization.

1279136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 636 counting only the distinct ones).

The product of its digits is 2268, while the sum is 29.

The square root of 1279136 is about 1130.9889477798. The cubic root of 1279136 is about 108.5522694065.

The spelling of 1279136 in words is "one million, two hundred seventy-nine thousand, one hundred thirty-six".