4521023 has 4 divisors (see below), whose sum is σ = 4868808. Its totient is φ = 4173240.

The previous prime is 4521001. The next prime is 4521037. The reversal of 4521023 is 3201254.

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 4521023 - 2⁸ = 4520767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4520992 and 4521010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4521053) 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, 173873 + ... + 173898.

It is an arithmetic number, because the mean of its divisors is an integer number (1217202).

Almost surely, 2^4521023 is an apocalyptic number.

4521023 is a deficient number, since it is larger than the sum of its proper divisors (347785).

4521023 is a wasteful number, since it uses less digits than its factorization.

4521023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347784.

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

The square root of 4521023 is about 2126.2697382976. The cubic root of 4521023 is about 165.3530609517.

Adding to 4521023 its reverse (3201254), we get a palindrome (7722277).

The spelling of 4521023 in words is "four million, five hundred twenty-one thousand, twenty-three".