4210102081 has 2 divisors, whose sum is σ = 4210102082. Its totient is φ = 4210102080.

The previous prime is 4210102051. The next prime is 4210102147. The reversal of 4210102081 is 1802010124.

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., 2635282225 + 1574819856 = 51335^2 + 39684^2 .

It is a cyclic number.

It is not a de Polignac number, because 4210102081 - 2¹³ = 4210093889 is a prime.

It is a super-2 number, since 2×4210102081² = 35449919064881061122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4210102021) 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, 2105051040 + 2105051041.

It is an arithmetic number, because the mean of its divisors is an integer number (2105051041).

Almost surely, 2^4210102081 is an apocalyptic number.

It is an amenable number.

4210102081 is a deficient number, since it is larger than the sum of its proper divisors (1).

4210102081 is an equidigital number, since it uses as much as digits as its factorization.

4210102081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 4210102081 is about 64885.2994213635. The cubic root of 4210102081 is about 1614.7211806714.

The spelling of 4210102081 in words is "four billion, two hundred ten million, one hundred two thousand, eighty-one".