4100905 has 8 divisors (see below), whose sum is σ = 4941000. Its totient is φ = 3267456.

The previous prime is 4100881. The next prime is 4100909. The reversal of 4100905 is 5090014.

It can be written as a sum of positive squares in 4 ways, for example, as 112896 + 3988009 = 336^2 + 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 4100905 - 2⁷ = 4100777 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4100909) 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, 180 + ... + 2869.

It is an arithmetic number, because the mean of its divisors is an integer number (617625).

Almost surely, 2^4100905 is an apocalyptic number.

It is an amenable number.

4100905 is a deficient number, since it is larger than the sum of its proper divisors (840095).

4100905 is a wasteful number, since it uses less digits than its factorization.

4100905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 4100905 is about 2025.0691346223. The cubic root of 4100905 is about 160.0638417106.

Adding to 4100905 its reverse (5090014), we get a palindrome (9190919).

It can be divided in two parts, 4100 and 905, that added together give a palindrome (5005).

The spelling of 4100905 in words is "four million, one hundred thousand, nine hundred five".