132408209 has 4 divisors (see below), whose sum is σ = 132748980. Its totient is φ = 132067440.

The previous prime is 132408191. The next prime is 132408239. The reversal of 132408209 is 902804231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45265984 + 87142225 = 6728^2 + 9335^2 .

It is a cyclic number.

It is not a de Polignac number, because 132408209 - 2⁸ = 132407953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132408239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169802 + ... + 170579.

It is an arithmetic number, because the mean of its divisors is an integer number (33187245).

Almost surely, 2^132408209 is an apocalyptic number.

It is an amenable number.

132408209 is a deficient number, since it is larger than the sum of its proper divisors (340771).

132408209 is an equidigital number, since it uses as much as digits as its factorization.

132408209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340770.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 132408209 is about 11506.8765961924. The cubic root of 132408209 is about 509.6886591343.

The spelling of 132408209 in words is "one hundred thirty-two million, four hundred eight thousand, two hundred nine".