4523513 has 4 divisors (see below), whose sum is σ = 4789620. Its totient is φ = 4257408.

The previous prime is 4523447. The next prime is 4523521. The reversal of 4523513 is 3153254.

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 3286969 + 1236544 = 1813^2 + 1112^2 .

It is a cyclic number.

It is not a de Polignac number, because 4523513 - 2¹⁶ = 4457977 is a prime.

It is a super-2 number, since 2×4523513² = 40924339722338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4523543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133028 + ... + 133061.

It is an arithmetic number, because the mean of its divisors is an integer number (1197405).

Almost surely, 2^4523513 is an apocalyptic number.

It is an amenable number.

4523513 is a deficient number, since it is larger than the sum of its proper divisors (266107).

4523513 is a wasteful number, since it uses less digits than its factorization.

4523513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266106.

The product of its digits is 1800, while the sum is 23.

The square root of 4523513 is about 2126.8551901810. The cubic root of 4523513 is about 165.3834120144.

Adding to 4523513 its reverse (3153254), we get a palindrome (7676767).

The spelling of 4523513 in words is "four million, five hundred twenty-three thousand, five hundred thirteen".