43120045 has 4 divisors (see below), whose sum is σ = 51744060. Its totient is φ = 34496032.

The previous prime is 43120027. The next prime is 43120057. The reversal of 43120045 is 54002134.

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 24621444 + 18498601 = 4962^2 + 4301^2 .

It is a cyclic number.

It is not a de Polignac number, because 43120045 - 2⁹ = 43119533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4312000 + ... + 4312009.

It is an arithmetic number, because the mean of its divisors is an integer number (12936015).

Almost surely, 2^43120045 is an apocalyptic number.

It is an amenable number.

43120045 is a deficient number, since it is larger than the sum of its proper divisors (8624015).

43120045 is an equidigital number, since it uses as much as digits as its factorization.

43120045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8624014.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 43120045 is about 6566.5854901920. The cubic root of 43120045 is about 350.6655228260.

Adding to 43120045 its reverse (54002134), we get a palindrome (97122179).

The spelling of 43120045 in words is "forty-three million, one hundred twenty thousand, forty-five".