201415000181 has 2 divisors, whose sum is σ = 201415000182. Its totient is φ = 201415000180.

The previous prime is 201415000169. The next prime is 201415000187. The reversal of 201415000181 is 181000514102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201384640081 + 30360100 = 448759^2 + 5510^2 .

It is a cyclic number.

It is not a de Polignac number, because 201415000181 - 2¹⁰ = 201414999157 is a prime.

It is a super-2 number, since 2×201415000181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201415000187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100707500090 + 100707500091.

It is an arithmetic number, because the mean of its divisors is an integer number (100707500091).

Almost surely, 2^201415000181 is an apocalyptic number.

It is an amenable number.

201415000181 is a deficient number, since it is larger than the sum of its proper divisors (1).

201415000181 is an equidigital number, since it uses as much as digits as its factorization.

201415000181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 23.

Adding to 201415000181 its reverse (181000514102), we get a palindrome (382415514283).

The spelling of 201415000181 in words is "two hundred one billion, four hundred fifteen million, one hundred eighty-one", and thus it is an aban number.