132649009 has 2 divisors, whose sum is σ = 132649010. Its totient is φ = 132649008.

The previous prime is 132649007. The next prime is 132649021. The reversal of 132649009 is 900946231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104611984 + 28037025 = 10228^2 + 5295^2 .

It is a cyclic number.

It is not a de Polignac number, because 132649009 - 2¹ = 132649007 is a prime.

Together with 132649007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (132649001) 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, 66324504 + 66324505.

It is an arithmetic number, because the mean of its divisors is an integer number (66324505).

Almost surely, 2^132649009 is an apocalyptic number.

It is an amenable number.

132649009 is a deficient number, since it is larger than the sum of its proper divisors (1).

132649009 is an equidigital number, since it uses as much as digits as its factorization.

132649009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 132649009 is about 11517.3351518483. The cubic root of 132649009 is about 509.9974484045.

The spelling of 132649009 in words is "one hundred thirty-two million, six hundred forty-nine thousand, nine".