2160526021 has 2 divisors, whose sum is σ = 2160526022. Its totient is φ = 2160526020.

The previous prime is 2160526003. The next prime is 2160526051. The reversal of 2160526021 is 1206250612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1469572225 + 690953796 = 38335^2 + 26286^2 .

It is a cyclic number.

It is not a de Polignac number, because 2160526021 - 2⁹ = 2160525509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2160526051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080263010 + 1080263011.

It is an arithmetic number, because the mean of its divisors is an integer number (1080263011).

Almost surely, 2^2160526021 is an apocalyptic number.

It is an amenable number.

2160526021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2160526021 is an equidigital number, since it uses as much as digits as its factorization.

2160526021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 2160526021 is about 46481.4588949185. The cubic root of 2160526021 is about 1292.7657386402.

Adding to 2160526021 its reverse (1206250612), we get a palindrome (3366776633).

The spelling of 2160526021 in words is "two billion, one hundred sixty million, five hundred twenty-six thousand, twenty-one".