1310993 has 2 divisors, whose sum is σ = 1310994. Its totient is φ = 1310992.

The previous prime is 1310987. The next prime is 1310999. The reversal of 1310993 is 3990131.

It is a balanced prime because it is at equal distance from previous prime (1310987) and next prime (1310999).

It can be written as a sum of positive squares in only one way, i.e., 1203409 + 107584 = 1097^2 + 328^2 .

It is a cyclic number.

It is not a de Polignac number, because 1310993 - 2¹⁴ = 1294609 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1310999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655496 + 655497.

It is an arithmetic number, because the mean of its divisors is an integer number (655497).

2^1310993 is an apocalyptic number.

It is an amenable number.

1310993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1310993 is an equidigital number, since it uses as much as digits as its factorization.

1310993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 1310993 is about 1144.9860261156. The cubic root of 1310993 is about 109.4460580975.

The spelling of 1310993 in words is "one million, three hundred ten thousand, nine hundred ninety-three".