10001081 has 2 divisors, whose sum is σ = 10001082. Its totient is φ = 10001080.

The previous prime is 10001053. The next prime is 10001093. The reversal of 10001081 is 18010001.

10001081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5248681 + 4752400 = 2291^2 + 2180^2 .

It is an emirp because it is prime and its reverse (18010001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10001081 is a prime.

It is a super-2 number, since 2×10001081² = 200043242337122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10001281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000540 + 5000541.

It is an arithmetic number, because the mean of its divisors is an integer number (5000541).

Almost surely, 2^10001081 is an apocalyptic number.

It is an amenable number.

10001081 is a deficient number, since it is larger than the sum of its proper divisors (1).

10001081 is an equidigital number, since it uses as much as digits as its factorization.

10001081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 10001081 is about 3162.4485766570. The cubic root of 10001081 is about 215.4512318698.

Adding to 10001081 its reverse (18010001), we get a palindrome (28011082).

The spelling of 10001081 in words is "ten million, one thousand, eighty-one".