4113523 has 4 divisors (see below), whose sum is σ = 4120168. Its totient is φ = 4106880.

The previous prime is 4113521. The next prime is 4113533. The reversal of 4113523 is 3253114.

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

It is a cyclic number.

It is not a de Polignac number, because 4113523 - 2¹ = 4113521 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4113523.

It is not an unprimeable number, because it can be changed into a prime (4113521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2286 + ... + 3667.

It is an arithmetic number, because the mean of its divisors is an integer number (1030042).

Almost surely, 2^4113523 is an apocalyptic number.

4113523 is a deficient number, since it is larger than the sum of its proper divisors (6645).

4113523 is an equidigital number, since it uses as much as digits as its factorization.

4113523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6644.

The product of its digits is 360, while the sum is 19.

The square root of 4113523 is about 2028.1821910272. The cubic root of 4113523 is about 160.2278394659.

Adding to 4113523 its reverse (3253114), we get a palindrome (7366637).

The spelling of 4113523 in words is "four million, one hundred thirteen thousand, five hundred twenty-three".