3143440081 has 2 divisors, whose sum is σ = 3143440082. Its totient is φ = 3143440080.

The previous prime is 3143440073. The next prime is 3143440109. The reversal of 3143440081 is 1800443413.

It is an a-pointer prime, because the next prime (3143440109) can be obtained adding 3143440081 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2444313600 + 699126481 = 49440^2 + 26441^2 .

It is an emirp because it is prime and its reverse (1800443413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3143440081 - 2³ = 3143440073 is a prime.

It is a super-2 number, since 2×3143440081² = 19762431085674573122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3143420081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1571720040 + 1571720041.

It is an arithmetic number, because the mean of its divisors is an integer number (1571720041).

Almost surely, 2^3143440081 is an apocalyptic number.

It is an amenable number.

3143440081 is a deficient number, since it is larger than the sum of its proper divisors (1).

3143440081 is an equidigital number, since it uses as much as digits as its factorization.

3143440081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 3143440081 is about 56066.3899408549. The cubic root of 3143440081 is about 1464.8789178779.

Adding to 3143440081 its reverse (1800443413), we get a palindrome (4943883494).

The spelling of 3143440081 in words is "three billion, one hundred forty-three million, four hundred forty thousand, eighty-one".