1386271 has 2 divisors, whose sum is σ = 1386272. Its totient is φ = 1386270.

The previous prime is 1386263. The next prime is 1386283. The reversal of 1386271 is 1726831.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1386271 - 2³ = 1386263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1386211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693135 + 693136.

It is an arithmetic number, because the mean of its divisors is an integer number (693136).

2^1386271 is an apocalyptic number.

1386271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1386271 is an equidigital number, since it uses as much as digits as its factorization.

1386271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 1386271 is about 1177.4001019195. The cubic root of 1386271 is about 111.5020142142.

The spelling of 1386271 in words is "one million, three hundred eighty-six thousand, two hundred seventy-one".