1271712 has 48 divisors (see below), whose sum is σ = 3598560. Its totient is φ = 390912.

The previous prime is 1271701. The next prime is 1271717. The reversal of 1271712 is 2171721.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (1271717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739 + ... + 1757.

It is an arithmetic number, because the mean of its divisors is an integer number (74970).

2^1271712 is an apocalyptic number.

1271712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1271712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1799280).

1271712 is an abundant number, since it is smaller than the sum of its proper divisors (2326848).

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

1271712 is a wasteful number, since it uses less digits than its factorization.

1271712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045 (or 1037 counting only the distinct ones).

The product of its digits is 196, while the sum is 21.

The square root of 1271712 is about 1127.7020883194. The cubic root of 1271712 is about 108.3418523215.

Subtracting 1271712 from its reverse (2171721), we obtain a palindrome (900009).

The spelling of 1271712 in words is "one million, two hundred seventy-one thousand, seven hundred twelve".