1331716 has 9 divisors (see below), whose sum is σ = 2334549. Its totient is φ = 664704.

The previous prime is 1331711. The next prime is 1331719. The reversal of 1331716 is 6171331.

The square root of 1331716 is 1154.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1322500 + 9216 = 1150^2 + 96^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331711) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2020 + ... + 2596.

2^1331716 is an apocalyptic number.

1331716 is the 1154-th square number.

It is an amenable number.

1331716 is a deficient number, since it is larger than the sum of its proper divisors (1002833).

1331716 is an frugal number, since it uses more digits than its factorization.

1331716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158 (or 579 counting only the distinct ones).

The product of its digits is 378, while the sum is 22.

The cubic root of 1331716 is about 110.0197209821.

It can be divided in two parts, 133 and 1716, that added together give a square (1849 = 43²).

The spelling of 1331716 in words is "one million, three hundred thirty-one thousand, seven hundred sixteen".