1271822 has 8 divisors (see below), whose sum is σ = 2008200. Its totient is φ = 602424.

The previous prime is 1271813. The next prime is 1271827. The reversal of 1271822 is 2281721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×1271822³ = 6171635296333512744, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271827) 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, 16697 + ... + 16772.

It is an arithmetic number, because the mean of its divisors is an integer number (251025).

2^1271822 is an apocalyptic number.

1271822 is a deficient number, since it is larger than the sum of its proper divisors (736378).

1271822 is a wasteful number, since it uses less digits than its factorization.

1271822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33490.

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

The square root of 1271822 is about 1127.7508590110. The cubic root of 1271822 is about 108.3449760005.

The spelling of 1271822 in words is "one million, two hundred seventy-one thousand, eight hundred twenty-two".