10381081 has 2 divisors, whose sum is σ = 10381082. Its totient is φ = 10381080.

The previous prime is 10381079. The next prime is 10381093. The reversal of 10381081 is 18018301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10208025 + 173056 = 3195^2 + 416^2 .

It is a cyclic number.

It is not a de Polignac number, because 10381081 - 2¹ = 10381079 is a prime.

It is a super-2 number, since 2×10381081² = 215533685457122, which contains 22 as substring.

Together with 10381079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10384081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5190540 + 5190541.

It is an arithmetic number, because the mean of its divisors is an integer number (5190541).

Almost surely, 2^10381081 is an apocalyptic number.

It is an amenable number.

10381081 is a deficient number, since it is larger than the sum of its proper divisors (1).

10381081 is an equidigital number, since it uses as much as digits as its factorization.

10381081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 10381081 is about 3221.9684976734. The cubic root of 10381081 is about 218.1461368997.

Adding to 10381081 its reverse (18018301), we get a palindrome (28399382).

The spelling of 10381081 in words is "ten million, three hundred eighty-one thousand, eighty-one".