2063805181 has 2 divisors, whose sum is σ = 2063805182. Its totient is φ = 2063805180.

The previous prime is 2063805089. The next prime is 2063805197. The reversal of 2063805181 is 1815083602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1518349156 + 545456025 = 38966^2 + 23355^2 .

It is a cyclic number.

It is not a de Polignac number, because 2063805181 - 2¹⁵ = 2063772413 is a prime.

It is a super-2 number, since 2×2063805181² = 8518583650244885522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2063805481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1031902590 + 1031902591.

It is an arithmetic number, because the mean of its divisors is an integer number (1031902591).

Almost surely, 2^2063805181 is an apocalyptic number.

It is an amenable number.

2063805181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2063805181 is an equidigital number, since it uses as much as digits as its factorization.

2063805181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 2063805181 is about 45429.1226087408. The cubic root of 2063805181 is about 1273.1792915011.

Adding to 2063805181 its reverse (1815083602), we get a palindrome (3878888783).

The spelling of 2063805181 in words is "two billion, sixty-three million, eight hundred five thousand, one hundred eighty-one".