20141081 has 2 divisors, whose sum is σ = 20141082. Its totient is φ = 20141080.

The previous prime is 20141063. The next prime is 20141089. The reversal of 20141081 is 18014102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18966025 + 1175056 = 4355^2 + 1084^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20141081 is a prime.

It is a super-2 number, since 2×20141081² = 811326287697122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20141089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10070540 + 10070541.

It is an arithmetic number, because the mean of its divisors is an integer number (10070541).

Almost surely, 2^20141081 is an apocalyptic number.

It is an amenable number.

20141081 is a deficient number, since it is larger than the sum of its proper divisors (1).

20141081 is an equidigital number, since it uses as much as digits as its factorization.

20141081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 20141081 is about 4487.8815715212. The cubic root of 20141081 is about 272.0785213397.

Adding to 20141081 its reverse (18014102), we get a palindrome (38155183).

The spelling of 20141081 in words is "twenty million, one hundred forty-one thousand, eighty-one".