132609 has 4 divisors (see below), whose sum is σ = 176816. Its totient is φ = 88404.

The previous prime is 132607. The next prime is 132611. The reversal of 132609 is 906231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (132607) and next prime (132611).

It is not a de Polignac number, because 132609 - 2¹ = 132607 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132607) 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, 22099 + ... + 22104.

It is an arithmetic number, because the mean of its divisors is an integer number (44204).

It is a Proth number, since it is equal to 259 ⋅ 2⁹ + 1 and 259 < 2⁹.

2¹³²⁶⁰⁹ is an apocalyptic number.

It is an amenable number.

132609 is a deficient number, since it is larger than the sum of its proper divisors (44207).

132609 is an equidigital number, since it uses as much as digits as its factorization.

132609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44206.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 132609 is about 364.1551866993. The cubic root of 132609 is about 50.9946168867.

It can be divided in two parts, 132 and 609, that added together give a triangular number (741 = T₃₈).

The spelling of 132609 in words is "one hundred thirty-two thousand, six hundred nine".