1271379 has 16 divisors (see below), whose sum is σ = 1820448. Its totient is φ = 786432.

The previous prime is 1271359. The next prime is 1271383. The reversal of 1271379 is 9731721.

It is not a de Polignac number, because 1271379 - 2⁷ = 1271251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1271339) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4819 + ... + 5075.

It is an arithmetic number, because the mean of its divisors is an integer number (113778).

2^1271379 is an apocalyptic number.

1271379 is a deficient number, since it is larger than the sum of its proper divisors (549069).

1271379 is a wasteful number, since it uses less digits than its factorization.

1271379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374.

The product of its digits is 2646, while the sum is 30.

The square root of 1271379 is about 1127.5544332758. The cubic root of 1271379 is about 108.3323949952.

The spelling of 1271379 in words is "one million, two hundred seventy-one thousand, three hundred seventy-nine".