1271682 has 48 divisors (see below), whose sum is σ = 2965248. Its totient is φ = 393120.

The previous prime is 1271671. The next prime is 1271687. The reversal of 1271682 is 2861721.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1271687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23968 + ... + 24020.

It is an arithmetic number, because the mean of its divisors is an integer number (61776).

2^1271682 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1271682, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1482624).

1271682 is an abundant number, since it is smaller than the sum of its proper divisors (1693566).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1271682 is a wasteful number, since it uses less digits than its factorization.

1271682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 132 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 1271682 is about 1127.6887868557. The cubic root of 1271682 is about 108.3410003778.

It can be divided in two parts, 1271 and 682, that added together give a triangular number (1953 = T₆₂).

The spelling of 1271682 in words is "one million, two hundred seventy-one thousand, six hundred eighty-two".