4542023 has 4 divisors (see below), whose sum is σ = 4546368. Its totient is φ = 4537680.

The previous prime is 4542019. The next prime is 4542029. The reversal of 4542023 is 3202454.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3202454 = 2 ⋅1601227.

It is a cyclic number.

It is not a de Polignac number, because 4542023 - 2² = 4542019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4541986 and 4542004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4542029) 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, 458 + ... + 3048.

It is an arithmetic number, because the mean of its divisors is an integer number (1136592).

Almost surely, 2^4542023 is an apocalyptic number.

4542023 is a deficient number, since it is larger than the sum of its proper divisors (4345).

4542023 is a wasteful number, since it uses less digits than its factorization.

4542023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4344.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 4542023 is about 2131.2022428667. The cubic root of 4542023 is about 165.6086853753.

Adding to 4542023 its reverse (3202454), we get a palindrome (7744477).

The spelling of 4542023 in words is "four million, five hundred forty-two thousand, twenty-three".