132740561 has 2 divisors, whose sum is σ = 132740562. Its totient is φ = 132740560.

The previous prime is 132740557. The next prime is 132740591. The reversal of 132740561 is 165047231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131239936 + 1500625 = 11456^2 + 1225^2 .

It is a cyclic number.

It is not a de Polignac number, because 132740561 - 2² = 132740557 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (132740551) 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, 66370280 + 66370281.

It is an arithmetic number, because the mean of its divisors is an integer number (66370281).

Almost surely, 2^132740561 is an apocalyptic number.

It is an amenable number.

132740561 is a deficient number, since it is larger than the sum of its proper divisors (1).

132740561 is an equidigital number, since it uses as much as digits as its factorization.

132740561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 132740561 is about 11521.3089968111. The cubic root of 132740561 is about 510.1147518281.

Adding to 132740561 its reverse (165047231), we get a palindrome (297787792).

The spelling of 132740561 in words is "one hundred thirty-two million, seven hundred forty thousand, five hundred sixty-one".