1279449459 has 8 divisors (see below), whose sum is σ = 1895480720. Its totient is φ = 852966288.

The previous prime is 1279449443. The next prime is 1279449467. The reversal of 1279449459 is 9549449721.

1279449459 is a `hidden beast` number, since 12 + 7 + 94 + 494 + 59 = 666.

It is not a de Polignac number, because 1279449459 - 2⁴ = 1279449443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1279449469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23693482 + ... + 23693535.

It is an arithmetic number, because the mean of its divisors is an integer number (236935090).

Almost surely, 2^1279449459 is an apocalyptic number.

1279449459 is a deficient number, since it is larger than the sum of its proper divisors (616031261).

1279449459 is an equidigital number, since it uses as much as digits as its factorization.

1279449459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47387026 (or 47387020 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 1279449459 is about 35769.3927681195. The cubic root of 1279449459 is about 1085.6113578367.

The spelling of 1279449459 in words is "one billion, two hundred seventy-nine million, four hundred forty-nine thousand, four hundred fifty-nine".