132685309 has 4 divisors (see below), whose sum is σ = 134860540. Its totient is φ = 130510080.

The previous prime is 132685271. The next prime is 132685313. The reversal of 132685309 is 903586231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 903586231 = 4129 ⋅218839.

It can be written as a sum of positive squares in 2 ways, for example, as 2656900 + 130028409 = 1630^2 + 11403^2 .

It is a cyclic number.

It is not a de Polignac number, because 132685309 - 2¹⁹ = 132161021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132685339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1087524 + ... + 1087645.

It is an arithmetic number, because the mean of its divisors is an integer number (33715135).

Almost surely, 2^132685309 is an apocalyptic number.

It is an amenable number.

132685309 is a deficient number, since it is larger than the sum of its proper divisors (2175231).

132685309 is an equidigital number, since it uses as much as digits as its factorization.

132685309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2175230.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 132685309 is about 11518.9109294238. The cubic root of 132685309 is about 510.0439651961.

The spelling of 132685309 in words is "one hundred thirty-two million, six hundred eighty-five thousand, three hundred nine".