1001354993 has 2 divisors, whose sum is σ = 1001354994. Its totient is φ = 1001354992.

The previous prime is 1001354989. The next prime is 1001355041. The reversal of 1001354993 is 3994531001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 769341169 + 232013824 = 27737^2 + 15232^2 .

It is a cyclic number.

It is not a de Polignac number, because 1001354993 - 2² = 1001354989 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 (1001354923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500677496 + 500677497.

It is an arithmetic number, because the mean of its divisors is an integer number (500677497).

Almost surely, 2^1001354993 is an apocalyptic number.

It is an amenable number.

1001354993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001354993 is an equidigital number, since it uses as much as digits as its factorization.

1001354993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 1001354993 is about 31644.1936696134. The cubic root of 1001354993 is about 1000.4514604861.

Adding to 1001354993 its reverse (3994531001), we get a palindrome (4995885994).

The spelling of 1001354993 in words is "one billion, one million, three hundred fifty-four thousand, nine hundred ninety-three".