1271479 has 4 divisors (see below), whose sum is σ = 1387080. Its totient is φ = 1155880.

The previous prime is 1271471. The next prime is 1271483. The reversal of 1271479 is 9741721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9741721 = 11 ⋅885611.

It is not a de Polignac number, because 1271479 - 2³ = 1271471 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1271479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57784 + ... + 57805.

It is an arithmetic number, because the mean of its divisors is an integer number (346770).

2^1271479 is an apocalyptic number.

1271479 is a deficient number, since it is larger than the sum of its proper divisors (115601).

1271479 is a wasteful number, since it uses less digits than its factorization.

1271479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115600.

The product of its digits is 3528, while the sum is 31.

The square root of 1271479 is about 1127.5987761611. The cubic root of 1271479 is about 108.3352352066.

The spelling of 1271479 in words is "one million, two hundred seventy-one thousand, four hundred seventy-nine".