1331383 has 2 divisors, whose sum is σ = 1331384. Its totient is φ = 1331382.

The previous prime is 1331381. The next prime is 1331399. The reversal of 1331383 is 3831331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1331383 - 2¹ = 1331381 is a prime.

Together with 1331381, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665691 + 665692.

It is an arithmetic number, because the mean of its divisors is an integer number (665692).

2^1331383 is an apocalyptic number.

1331383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331383 is an equidigital number, since it uses as much as digits as its factorization.

1331383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 22.

The square root of 1331383 is about 1153.8557102168. The cubic root of 1331383 is about 110.0105499523.

The spelling of 1331383 in words is "one million, three hundred thirty-one thousand, three hundred eighty-three".