43545132 has 18 divisors (see below), whose sum is σ = 110072508. Its totient is φ = 14515032.

The previous prime is 43545121. The next prime is 43545149. The reversal of 43545132 is 23154534.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 43545096 and 43545105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 604758 + ... + 604829.

Almost surely, 2^43545132 is an apocalyptic number.

It is an amenable number.

43545132 is an abundant number, since it is smaller than the sum of its proper divisors (66527376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43545132 is a wasteful number, since it uses less digits than its factorization.

43545132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209597 (or 1209592 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 43545132 is about 6598.8735402340. The cubic root of 43545132 is about 351.8140697649.

Adding to 43545132 its reverse (23154534), we get a palindrome (66699666).

The spelling of 43545132 in words is "forty-three million, five hundred forty-five thousand, one hundred thirty-two".