43041212145 has 24 divisors (see below), whose sum is σ = 78531336000. Its totient is φ = 21747138336.

The previous prime is 43041212129. The next prime is 43041212147. The reversal of 43041212145 is 54121214034.

43041212145 is a `hidden beast` number, since 4 + 30 + 412 + 1 + 214 + 5 = 666.

It is not a de Polignac number, because 43041212145 - 2⁴ = 43041212129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43041212147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25169445 + ... + 25171154.

It is an arithmetic number, because the mean of its divisors is an integer number (3272139000).

Almost surely, 2^43041212145 is an apocalyptic number.

43041212145 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43041212145 is a deficient number, since it is larger than the sum of its proper divisors (35490123855).

43041212145 is a wasteful number, since it uses less digits than its factorization.

43041212145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50340629 (or 50340626 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 43041212145 its reverse (54121214034), we get a palindrome (97162426179).

The spelling of 43041212145 in words is "forty-three billion, forty-one million, two hundred twelve thousand, one hundred forty-five".