4520231 has 4 divisors (see below), whose sum is σ = 4540200. Its totient is φ = 4500264.

The previous prime is 4520227. The next prime is 4520237. The reversal of 4520231 is 1320254.

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 4520231 - 2² = 4520227 is a prime.

It is a super-2 number, since 2×4520231² = 40864976586722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4520237) 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, 9641 + ... + 10098.

It is an arithmetic number, because the mean of its divisors is an integer number (1135050).

Almost surely, 2^4520231 is an apocalyptic number.

4520231 is a deficient number, since it is larger than the sum of its proper divisors (19969).

4520231 is a wasteful number, since it uses less digits than its factorization.

4520231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19968.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 4520231 is about 2126.0834884830. The cubic root of 4520231 is about 165.3434047838.

Adding to 4520231 its reverse (1320254), we get a palindrome (5840485).

The spelling of 4520231 in words is "four million, five hundred twenty thousand, two hundred thirty-one".