4111605 has 12 divisors (see below), whose sum is σ = 7126860. Its totient is φ = 2192832.

The previous prime is 4111577. The next prime is 4111621. The reversal of 4111605 is 5061114.

It can be written as a sum of positive squares in 2 ways, for example, as 2852721 + 1258884 = 1689^2 + 1122^2 .

It is not a de Polignac number, because 4111605 - 2⁵ = 4111573 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45640 + ... + 45729.

It is an arithmetic number, because the mean of its divisors is an integer number (593905).

Almost surely, 2^4111605 is an apocalyptic number.

4111605 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4111605 is a deficient number, since it is larger than the sum of its proper divisors (3015255).

4111605 is a wasteful number, since it uses less digits than its factorization.

4111605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91380 (or 91377 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 4111605 is about 2027.7092986915. The cubic root of 4111605 is about 160.2029326101.

Adding to 4111605 its reverse (5061114), we get a palindrome (9172719).

It can be divided in two parts, 411 and 1605, that added together give a triangular number (2016 = T₆₃).

The spelling of 4111605 in words is "four million, one hundred eleven thousand, six hundred five".