4145233181 has 2 divisors, whose sum is σ = 4145233182. Its totient is φ = 4145233180.

The previous prime is 4145233177. The next prime is 4145233219. The reversal of 4145233181 is 1813325414.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4107656281 + 37576900 = 64091^2 + 6130^2 .

It is a cyclic number.

It is not a de Polignac number, because 4145233181 - 2² = 4145233177 is a prime.

It is a super-2 number, since 2×4145233181² = 34365916249726757522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4145232181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2072616590 + 2072616591.

It is an arithmetic number, because the mean of its divisors is an integer number (2072616591).

Almost surely, 2^4145233181 is an apocalyptic number.

It is an amenable number.

4145233181 is a deficient number, since it is larger than the sum of its proper divisors (1).

4145233181 is an equidigital number, since it uses as much as digits as its factorization.

4145233181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 32.

The square root of 4145233181 is about 64383.4853126172. The cubic root of 4145233181 is about 1606.3850559607.

Adding to 4145233181 its reverse (1813325414), we get a palindrome (5958558595).

It can be divided in two parts, 4145233 and 181, that added together give a palindrome (4145414).

The spelling of 4145233181 in words is "four billion, one hundred forty-five million, two hundred thirty-three thousand, one hundred eighty-one".