43158012 has 24 divisors (see below), whose sum is σ = 100872912. Its totient is φ = 14361600.

The previous prime is 43157981. The next prime is 43158023. The reversal of 43158012 is 21085134.

43158012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×43158012² = 3725227999584288, which contains 22 as substring.

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, 5212 + ... + 10652.

It is an arithmetic number, because the mean of its divisors is an integer number (4203038).

Almost surely, 2^43158012 is an apocalyptic number.

It is an amenable number.

43158012 is an abundant number, since it is smaller than the sum of its proper divisors (57714900).

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

43158012 is a wasteful number, since it uses less digits than its factorization.

43158012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6109 (or 6107 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 43158012 is about 6569.4757781729. The cubic root of 43158012 is about 350.7684124238.

The spelling of 43158012 in words is "forty-three million, one hundred fifty-eight thousand, twelve".