43158107 has 4 divisors (see below), whose sum is σ = 44550336. Its totient is φ = 41765880.

The previous prime is 43158103. The next prime is 43158109. The reversal of 43158107 is 70185134.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70185134 = 2 ⋅35092567.

It is a cyclic number.

It is not a de Polignac number, because 43158107 - 2² = 43158103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43158107.

It is not an unprimeable number, because it can be changed into a prime (43158103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 696068 + ... + 696129.

It is an arithmetic number, because the mean of its divisors is an integer number (11137584).

Almost surely, 2^43158107 is an apocalyptic number.

43158107 is a deficient number, since it is larger than the sum of its proper divisors (1392229).

43158107 is a wasteful number, since it uses less digits than its factorization.

43158107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392228.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 43158107 is about 6569.4830085784. The cubic root of 43158107 is about 350.7686697957.

The spelling of 43158107 in words is "forty-three million, one hundred fifty-eight thousand, one hundred seven".