132809786 has 4 divisors (see below), whose sum is σ = 199214682. Its totient is φ = 66404892.

The previous prime is 132809773. The next prime is 132809801. The reversal of 132809786 is 687908231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 687908231 = 241 ⋅2854391.

It can be written as a sum of positive squares in only one way, i.e., 106605625 + 26204161 = 10325^2 + 5119^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33202445 + ... + 33202448.

Almost surely, 2^132809786 is an apocalyptic number.

132809786 is a deficient number, since it is larger than the sum of its proper divisors (66404896).

132809786 is an equidigital number, since it uses as much as digits as its factorization.

132809786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66404895.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 132809786 is about 11524.3128211620. The cubic root of 132809786 is about 510.2034123868.

The spelling of 132809786 in words is "one hundred thirty-two million, eight hundred nine thousand, seven hundred eighty-six".