1279145 has 24 divisors (see below), whose sum is σ = 1871424. Its totient is φ = 835296.

The previous prime is 1279141. The next prime is 1279163. The reversal of 1279145 is 5419721.

It is not a de Polignac number, because 1279145 - 2² = 1279141 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1279141) 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, 5522 + ... + 5748.

It is an arithmetic number, because the mean of its divisors is an integer number (77976).

2^1279145 is an apocalyptic number.

It is an amenable number.

1279145 is a deficient number, since it is larger than the sum of its proper divisors (592279).

1279145 is a wasteful number, since it uses less digits than its factorization.

1279145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269 (or 262 counting only the distinct ones).

The product of its digits is 2520, while the sum is 29.

The square root of 1279145 is about 1130.9929265915. The cubic root of 1279145 is about 108.5525239971.

The spelling of 1279145 in words is "one million, two hundred seventy-nine thousand, one hundred forty-five".