1331366 has 16 divisors (see below), whose sum is σ = 2076624. Its totient is φ = 639744.

The previous prime is 1331347. The next prime is 1331377. The reversal of 1331366 is 6631331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9650 + ... + 9786.

It is an arithmetic number, because the mean of its divisors is an integer number (129789).

2^1331366 is an apocalyptic number.

1331366 is a deficient number, since it is larger than the sum of its proper divisors (745258).

1331366 is a wasteful number, since it uses less digits than its factorization.

1331366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295.

The product of its digits is 972, while the sum is 23.

The square root of 1331366 is about 1153.8483435877. The cubic root of 1331366 is about 110.0100817206.

Adding to 1331366 its reverse (6631331), we get a palindrome (7962697).

The spelling of 1331366 in words is "one million, three hundred thirty-one thousand, three hundred sixty-six".