132569609 has 8 divisors (see below), whose sum is σ = 138259968. Its totient is φ = 126967680.

The previous prime is 132569581. The next prime is 132569611. The reversal of 132569609 is 906965231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132569609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132569699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19037 + ... + 25050.

It is an arithmetic number, because the mean of its divisors is an integer number (17282496).

Almost surely, 2^132569609 is an apocalyptic number.

It is an amenable number.

132569609 is a deficient number, since it is larger than the sum of its proper divisors (5690359).

132569609 is an equidigital number, since it uses as much as digits as its factorization.

132569609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44215.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 132569609 is about 11513.8876579546. The cubic root of 132569609 is about 509.8956713417.

The spelling of 132569609 in words is "one hundred thirty-two million, five hundred sixty-nine thousand, six hundred nine".