4105945 has 8 divisors (see below), whose sum is σ = 5047560. Its totient is φ = 3204480.

The previous prime is 4105943. The next prime is 4105949. The reversal of 4105945 is 5495014.

It can be written as a sum of positive squares in 4 ways, for example, as 29584 + 4076361 = 172^2 + 2019^2 .

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

It is not a de Polignac number, because 4105945 - 2¹ = 4105943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4105943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9810 + ... + 10219.

It is an arithmetic number, because the mean of its divisors is an integer number (630945).

Almost surely, 2^4105945 is an apocalyptic number.

It is an amenable number.

4105945 is a deficient number, since it is larger than the sum of its proper divisors (941615).

4105945 is a wasteful number, since it uses less digits than its factorization.

4105945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20075.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 4105945 is about 2026.3131544754. The cubic root of 4105945 is about 160.1293875272.

It can be divided in two parts, 4105 and 945, that added together give a triangular number (5050 = T₁₀₀).

The spelling of 4105945 in words is "four million, one hundred five thousand, nine hundred forty-five".