1306271 has 4 divisors (see below), whose sum is σ = 1334112. Its totient is φ = 1278432.

The previous prime is 1306267. The next prime is 1306273. The reversal of 1306271 is 1726031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1306271 - 2² = 1306267 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1306273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13850 + ... + 13943.

It is an arithmetic number, because the mean of its divisors is an integer number (333528).

2^1306271 is an apocalyptic number.

1306271 is a deficient number, since it is larger than the sum of its proper divisors (27841).

1306271 is an equidigital number, since it uses as much as digits as its factorization.

1306271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27840.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 1306271 is about 1142.9221320807. The cubic root of 1306271 is about 109.3144972591.

The spelling of 1306271 in words is "one million, three hundred six thousand, two hundred seventy-one".