4057195081 has 2 divisors, whose sum is σ = 4057195082. Its totient is φ = 4057195080.

The previous prime is 4057195073. The next prime is 4057195111. The reversal of 4057195081 is 1805917504.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3681455625 + 375739456 = 60675^2 + 19384^2 .

It is a cyclic number.

It is not a de Polignac number, because 4057195081 - 2³ = 4057195073 is a prime.

It is a super-2 number, since 2×4057195081² = 32921663850581193122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4057195031) 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, 2028597540 + 2028597541.

It is an arithmetic number, because the mean of its divisors is an integer number (2028597541).

Almost surely, 2^4057195081 is an apocalyptic number.

It is an amenable number.

4057195081 is a deficient number, since it is larger than the sum of its proper divisors (1).

4057195081 is an equidigital number, since it uses as much as digits as its factorization.

4057195081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 40.

The square root of 4057195081 is about 63696.1151170148. The cubic root of 4057195081 is about 1594.9312353946.

The spelling of 4057195081 in words is "four billion, fifty-seven million, one hundred ninety-five thousand, eighty-one".