43542105 has 32 divisors (see below), whose sum is σ = 73923840. Its totient is φ = 21838080.

The previous prime is 43542089. The next prime is 43542131. The reversal of 43542105 is 50124534.

It is not a de Polignac number, because 43542105 - 2⁴ = 43542089 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20011 + ... + 22079.

It is an arithmetic number, because the mean of its divisors is an integer number (2310120).

Almost surely, 2^43542105 is an apocalyptic number.

It is an amenable number.

43542105 is a deficient number, since it is larger than the sum of its proper divisors (30381735).

43542105 is a wasteful number, since it uses less digits than its factorization.

43542105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 43542105 is about 6598.6441789204. The cubic root of 43542105 is about 351.8059175650.

Adding to 43542105 its reverse (50124534), we get a palindrome (93666639).

The spelling of 43542105 in words is "forty-three million, five hundred forty-two thousand, one hundred five".