1331699 has 2 divisors, whose sum is σ = 1331700. Its totient is φ = 1331698.

The previous prime is 1331683. The next prime is 1331711. The reversal of 1331699 is 9961331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1331699 - 2⁴ = 1331683 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1331299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665849 + 665850.

It is an arithmetic number, because the mean of its divisors is an integer number (665850).

2^1331699 is an apocalyptic number.

1331699 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331699 is an equidigital number, since it uses as much as digits as its factorization.

1331699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4374, while the sum is 32.

The square root of 1331699 is about 1153.9926342919. The cubic root of 1331699 is about 110.0192528284.

The spelling of 1331699 in words is "one million, three hundred thirty-one thousand, six hundred ninety-nine".