4101605 has 4 divisors (see below), whose sum is σ = 4921932. Its totient is φ = 3281280.

The previous prime is 4101593. The next prime is 4101623. The reversal of 4101605 is 5061014.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3147076 + 954529 = 1774^2 + 977^2 .

It is not a de Polignac number, because 4101605 - 2⁶ = 4101541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410156 + ... + 410165.

It is an arithmetic number, because the mean of its divisors is an integer number (1230483).

Almost surely, 2^4101605 is an apocalyptic number.

It is an amenable number.

4101605 is a deficient number, since it is larger than the sum of its proper divisors (820327).

4101605 is an equidigital number, since it uses as much as digits as its factorization.

4101605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820326.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 4101605 is about 2025.2419608531. The cubic root of 4101605 is about 160.0729485065.

Adding to 4101605 its reverse (5061014), we get a palindrome (9162619).

The spelling of 4101605 in words is "four million, one hundred one thousand, six hundred five".