4102605 has 24 divisors (see below), whose sum is σ = 7659288. Its totient is φ = 2019456.

The previous prime is 4102603. The next prime is 4102649. The reversal of 4102605 is 5062014.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 393129 + 3709476 = 627^2 + 1926^2 .

It is not a de Polignac number, because 4102605 - 2¹ = 4102603 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4102603) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2922 + ... + 4091.

It is an arithmetic number, because the mean of its divisors is an integer number (319137).

Almost surely, 2^4102605 is an apocalyptic number.

4102605 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4102605 is a deficient number, since it is larger than the sum of its proper divisors (3556683).

4102605 is a wasteful number, since it uses less digits than its factorization.

4102605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7037 (or 7034 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 4102605 is about 2025.4888298877. The cubic root of 4102605 is about 160.0859564177.

Adding to 4102605 its reverse (5062014), we get a palindrome (9164619).

The spelling of 4102605 in words is "four million, one hundred two thousand, six hundred five".