132020209 has 4 divisors (see below), whose sum is σ = 136572660. Its totient is φ = 127467760.

The previous prime is 132020179. The next prime is 132020219. The reversal of 132020209 is 902020231.

It is a happy number.

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 98704225 + 33315984 = 9935^2 + 5772^2 .

It is not a de Polignac number, because 132020209 - 2⁷ = 132020081 is a prime.

It is a super-3 number, since 3×132020209³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132020219) 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, 2276182 + ... + 2276239.

It is an arithmetic number, because the mean of its divisors is an integer number (34143165).

Almost surely, 2^132020209 is an apocalyptic number.

It is an amenable number.

132020209 is a deficient number, since it is larger than the sum of its proper divisors (4552451).

132020209 is an equidigital number, since it uses as much as digits as its factorization.

132020209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4552450.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 132020209 is about 11490.0047432540. The cubic root of 132020209 is about 509.1903197362.

The spelling of 132020209 in words is "one hundred thirty-two million, twenty thousand, two hundred nine".