1421271 has 12 divisors (see below), whose sum is σ = 2084472. Its totient is φ = 932976.

The previous prime is 1421267. The next prime is 1421291. The reversal of 1421271 is 1721241.

It is not a de Polignac number, because 1421271 - 2² = 1421267 is a prime.

It is a super-2 number, since 2×1421271² = 4040022510882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 576 + ... + 1781.

It is an arithmetic number, because the mean of its divisors is an integer number (173706).

2^1421271 is an apocalyptic number.

1421271 is a deficient number, since it is larger than the sum of its proper divisors (663201).

1421271 is a wasteful number, since it uses less digits than its factorization.

1421271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430 (or 2427 counting only the distinct ones).

The product of its digits is 112, while the sum is 18.

The square root of 1421271 is about 1192.1707092527. The cubic root of 1421271 is about 112.4326114936.

The spelling of 1421271 in words is "one million, four hundred twenty-one thousand, two hundred seventy-one".