1282271 has 4 divisors (see below), whose sum is σ = 1285392. Its totient is φ = 1279152.

The previous prime is 1282261. The next prime is 1282277. The reversal of 1282271 is 1722821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1282271 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1282277) 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, 830 + ... + 1803.

It is an arithmetic number, because the mean of its divisors is an integer number (321348).

2^1282271 is an apocalyptic number.

1282271 is a deficient number, since it is larger than the sum of its proper divisors (3121).

1282271 is an equidigital number, since it uses as much as digits as its factorization.

1282271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3120.

The product of its digits is 448, while the sum is 23.

The square root of 1282271 is about 1132.3740548070. The cubic root of 1282271 is about 108.6408796670.

The spelling of 1282271 in words is "one million, two hundred eighty-two thousand, two hundred seventy-one".