4023142181 has 2 divisors, whose sum is σ = 4023142182. Its totient is φ = 4023142180.

The previous prime is 4023142159. The next prime is 4023142223. The reversal of 4023142181 is 1812413204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3345581281 + 677560900 = 57841^2 + 26030^2 .

It is a cyclic number.

It is not a de Polignac number, because 4023142181 - 2²⁶ = 3956033317 is a prime.

It is a super-2 number, since 2×4023142181² = 32371346017082873522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4023142181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4023192181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2011571090 + 2011571091.

It is an arithmetic number, because the mean of its divisors is an integer number (2011571091).

Almost surely, 2^4023142181 is an apocalyptic number.

It is an amenable number.

4023142181 is a deficient number, since it is larger than the sum of its proper divisors (1).

4023142181 is an equidigital number, since it uses as much as digits as its factorization.

4023142181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 4023142181 is about 63428.2443474514. The cubic root of 4023142181 is about 1590.4564939283.

Adding to 4023142181 its reverse (1812413204), we get a palindrome (5835555385).

The spelling of 4023142181 in words is "four billion, twenty-three million, one hundred forty-two thousand, one hundred eighty-one".