4231523 has 4 divisors (see below), whose sum is σ = 4236288. Its totient is φ = 4226760.

The previous prime is 4231483. The next prime is 4231537. The reversal of 4231523 is 3251324.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4231523 - 2⁶ = 4231459 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4231495 and 4231504.

It is not an unprimeable number, because it can be changed into a prime (4231553) 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, 611 + ... + 2972.

It is an arithmetic number, because the mean of its divisors is an integer number (1059072).

Almost surely, 2^4231523 is an apocalyptic number.

4231523 is a deficient number, since it is larger than the sum of its proper divisors (4765).

4231523 is a wasteful number, since it uses less digits than its factorization.

4231523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4764.

The product of its digits is 720, while the sum is 20.

The square root of 4231523 is about 2057.0666007692. The cubic root of 4231523 is about 161.7455106026.

Adding to 4231523 its reverse (3251324), we get a palindrome (7482847).

The spelling of 4231523 in words is "four million, two hundred thirty-one thousand, five hundred twenty-three".