132342409 has 4 divisors (see below), whose sum is σ = 132558916. Its totient is φ = 132125904.

The previous prime is 132342401. The next prime is 132342439. The reversal of 132342409 is 904243231.

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 10725625 + 121616784 = 3275^2 + 11028^2 .

It is a cyclic number.

It is not a de Polignac number, because 132342409 - 2³ = 132342401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132342401) 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, 107334 + ... + 108559.

It is an arithmetic number, because the mean of its divisors is an integer number (33139729).

Almost surely, 2^132342409 is an apocalyptic number.

It is an amenable number.

132342409 is a deficient number, since it is larger than the sum of its proper divisors (216507).

132342409 is an equidigital number, since it uses as much as digits as its factorization.

132342409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216506.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 132342409 is about 11504.0170810026. The cubic root of 132342409 is about 509.6042155513.

The spelling of 132342409 in words is "one hundred thirty-two million, three hundred forty-two thousand, four hundred nine".