4531523 has 4 divisors (see below), whose sum is σ = 4550568. Its totient is φ = 4512480.

The previous prime is 4531517. The next prime is 4531543. The reversal of 4531523 is 3251354.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3251354 = 2 ⋅1625677.

It is a cyclic number.

It is not a de Polignac number, because 4531523 - 2¹⁰ = 4530499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4531543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9161 + ... + 9642.

It is an arithmetic number, because the mean of its divisors is an integer number (1137642).

Almost surely, 2^4531523 is an apocalyptic number.

4531523 is a deficient number, since it is larger than the sum of its proper divisors (19045).

4531523 is a wasteful number, since it uses less digits than its factorization.

4531523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19044.

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

The square root of 4531523 is about 2128.7374192230. The cubic root of 4531523 is about 165.4809718816.

Adding to 4531523 its reverse (3251354), we get a palindrome (7782877).

The spelling of 4531523 in words is "four million, five hundred thirty-one thousand, five hundred twenty-three".