32445109 has 4 divisors (see below), whose sum is σ = 32495904. Its totient is φ = 32394316.

The previous prime is 32445067. The next prime is 32445121. The reversal of 32445109 is 90154423.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90154423 = 853 ⋅105691.

It is a cyclic number.

It is not a de Polignac number, because 32445109 - 2¹³ = 32436917 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 (32445199) 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, 24427 + ... + 25720.

It is an arithmetic number, because the mean of its divisors is an integer number (8123976).

Almost surely, 2^32445109 is an apocalyptic number.

It is an amenable number.

32445109 is a deficient number, since it is larger than the sum of its proper divisors (50795).

32445109 is an equidigital number, since it uses as much as digits as its factorization.

32445109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50794.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 32445109 is about 5696.0608318381. The cubic root of 32445109 is about 318.9454511143.

The spelling of 32445109 in words is "thirty-two million, four hundred forty-five thousand, one hundred nine".