1331414393 has 2 divisors, whose sum is σ = 1331414394. Its totient is φ = 1331414392.

The previous prime is 1331414377. The next prime is 1331414407. The reversal of 1331414393 is 3934141331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1324086544 + 7327849 = 36388^2 + 2707^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331414393 - 2⁴ = 1331414377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331414323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665707196 + 665707197.

It is an arithmetic number, because the mean of its divisors is an integer number (665707197).

Almost surely, 2^1331414393 is an apocalyptic number.

It is an amenable number.

1331414393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331414393 is an equidigital number, since it uses as much as digits as its factorization.

1331414393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 32.

The square root of 1331414393 is about 36488.5515333234. The cubic root of 1331414393 is about 1100.1141460060.

The spelling of 1331414393 in words is "one billion, three hundred thirty-one million, four hundred fourteen thousand, three hundred ninety-three".