1271662 has 8 divisors (see below), whose sum is σ = 2180016. Its totient is φ = 544992.

The previous prime is 1271659. The next prime is 1271671. The reversal of 1271662 is 2661721.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45403 + ... + 45430.

It is an arithmetic number, because the mean of its divisors is an integer number (272502).

2^1271662 is an apocalyptic number.

1271662 is a deficient number, since it is larger than the sum of its proper divisors (908354).

1271662 is an equidigital number, since it uses as much as digits as its factorization.

1271662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90842.

The product of its digits is 1008, while the sum is 25.

The square root of 1271662 is about 1127.6799191260. The cubic root of 1271662 is about 108.3404324079.

The spelling of 1271662 in words is "one million, two hundred seventy-one thousand, six hundred sixty-two".