1279445 has 8 divisors (see below), whose sum is σ = 1554336. Its totient is φ = 1010896.

The previous prime is 1279427. The next prime is 1279457. The reversal of 1279445 is 5449721.

It is a happy number.

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 1279445 - 2⁸ = 1279189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1127 + ... + 1956.

It is an arithmetic number, because the mean of its divisors is an integer number (194292).

2^1279445 is an apocalyptic number.

It is an amenable number.

1279445 is a deficient number, since it is larger than the sum of its proper divisors (274891).

1279445 is an equidigital number, since it uses as much as digits as its factorization.

1279445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171.

The product of its digits is 10080, while the sum is 32.

The square root of 1279445 is about 1131.1255456403. The cubic root of 1279445 is about 108.5610096683.

The spelling of 1279445 in words is "one million, two hundred seventy-nine thousand, four hundred forty-five".