132205681 has 2 divisors, whose sum is σ = 132205682. Its totient is φ = 132205680.

The previous prime is 132205663. The next prime is 132205687. The reversal of 132205681 is 186502231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114490000 + 17715681 = 10700^2 + 4209^2 .

It is a cyclic number.

It is not a de Polignac number, because 132205681 - 2¹⁵ = 132172913 is a prime.

It is a super-2 number, since 2×132205681² = 34956684177347522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (132205687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66102840 + 66102841.

It is an arithmetic number, because the mean of its divisors is an integer number (66102841).

Almost surely, 2^132205681 is an apocalyptic number.

It is an amenable number.

132205681 is a deficient number, since it is larger than the sum of its proper divisors (1).

132205681 is an equidigital number, since it uses as much as digits as its factorization.

132205681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 132205681 is about 11498.0729254950. The cubic root of 132205681 is about 509.4286578826.

The spelling of 132205681 in words is "one hundred thirty-two million, two hundred five thousand, six hundred eighty-one".