132020081 has 2 divisors, whose sum is σ = 132020082. Its totient is φ = 132020080.

The previous prime is 132020071. The next prime is 132020137. The reversal of 132020081 is 180020231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130896481 + 1123600 = 11441^2 + 1060^2 .

It is a cyclic number.

It is not a de Polignac number, because 132020081 - 2¹⁸ = 131757937 is a prime.

It is a super-2 number, since 2×132020081² = 34858603574493122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (132020071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66010040 + 66010041.

It is an arithmetic number, because the mean of its divisors is an integer number (66010041).

Almost surely, 2^132020081 is an apocalyptic number.

It is an amenable number.

132020081 is a deficient number, since it is larger than the sum of its proper divisors (1).

132020081 is an equidigital number, since it uses as much as digits as its factorization.

132020081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 132020081 is about 11489.9991731941. Note that the first 3 decimals coincide. The cubic root of 132020081 is about 509.1901551746.

The spelling of 132020081 in words is "one hundred thirty-two million, twenty thousand, eighty-one".