4195945 has 8 divisors (see below), whose sum is σ = 5422536. Its totient is φ = 3098496.

The previous prime is 4195937. The next prime is 4195949. The reversal of 4195945 is 5495914.

It can be written as a sum of positive squares in 4 ways, for example, as 207936 + 3988009 = 456^2 + 1997^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4195945 - 2³ = 4195937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4195949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32212 + ... + 32341.

It is an arithmetic number, because the mean of its divisors is an integer number (677817).

Almost surely, 2^4195945 is an apocalyptic number.

It is an amenable number.

4195945 is a deficient number, since it is larger than the sum of its proper divisors (1226591).

4195945 is a wasteful number, since it uses less digits than its factorization.

4195945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64571.

The product of its digits is 32400, while the sum is 37.

The square root of 4195945 is about 2048.4005955867. The cubic root of 4195945 is about 161.2909236515.

The spelling of 4195945 in words is "four million, one hundred ninety-five thousand, nine hundred forty-five".