43105225 has 6 divisors (see below), whose sum is σ = 53450510. Its totient is φ = 34484160.

The previous prime is 43105219. The next prime is 43105273. The reversal of 43105225 is 52250134.

It can be written as a sum of positive squares in 3 ways, for example, as 3326976 + 39778249 = 1824^2 + 6307^2 .

It is not a de Polignac number, because 43105225 - 2⁵ = 43105193 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43105196 and 43105205.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 862080 + ... + 862129.

Almost surely, 2^43105225 is an apocalyptic number.

It is an amenable number.

43105225 is a deficient number, since it is larger than the sum of its proper divisors (10345285).

43105225 is a wasteful number, since it uses less digits than its factorization.

43105225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1724219 (or 1724214 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 43105225 is about 6565.4569528708. The cubic root of 43105225 is about 350.6253446171.

Adding to 43105225 its reverse (52250134), we get a palindrome (95355359).

The spelling of 43105225 in words is "forty-three million, one hundred five thousand, two hundred twenty-five".