133432645 has 8 divisors (see below), whose sum is σ = 160503840. Its totient is φ = 106489680.

The previous prime is 133432639. The next prime is 133432667. The reversal of 133432645 is 546234331.

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

It is not a de Polignac number, because 133432645 - 2⁵ = 133432613 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29751 + ... + 33940.

It is an arithmetic number, because the mean of its divisors is an integer number (20062980).

Almost surely, 2^133432645 is an apocalyptic number.

It is an amenable number.

133432645 is a deficient number, since it is larger than the sum of its proper divisors (27071195).

133432645 is an equidigital number, since it uses as much as digits as its factorization.

133432645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64115.

The product of its digits is 25920, while the sum is 31.

The square root of 133432645 is about 11551.3049046417. The cubic root of 133432645 is about 510.9997625621. Note that the first 3 decimals are identical.

Adding to 133432645 its reverse (546234331), we get a palindrome (679666976).

The spelling of 133432645 in words is "one hundred thirty-three million, four hundred thirty-two thousand, six hundred forty-five".