545203023 has 4 divisors (see below), whose sum is σ = 726937368. Its totient is φ = 363468680.

The previous prime is 545203019. The next prime is 545203027. The reversal of 545203023 is 320302545.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (545203019) and next prime (545203027).

It is a cyclic number.

It is not a de Polignac number, because 545203023 - 2² = 545203019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 545202984 and 545203002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545203027) 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, 90867168 + ... + 90867173.

It is an arithmetic number, because the mean of its divisors is an integer number (181734342).

Almost surely, 2^545203023 is an apocalyptic number.

545203023 is a deficient number, since it is larger than the sum of its proper divisors (181734345).

545203023 is a wasteful number, since it uses less digits than its factorization.

545203023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181734344.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 545203023 is about 23349.5829298941. The cubic root of 545203023 is about 816.9323328562.

Adding to 545203023 its reverse (320302545), we get a palindrome (865505568).

The spelling of 545203023 in words is "five hundred forty-five million, two hundred three thousand, twenty-three".