545335231 has 16 divisors (see below), whose sum is σ = 660566016. Its totient is φ = 439491456.

The previous prime is 545335223. The next prime is 545335243. The reversal of 545335231 is 132533545.

It is a cyclic number.

It is not a de Polignac number, because 545335231 - 2³ = 545335223 is a prime.

It is a super-2 number, since 2×545335231² = 594781028339646722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 545335193 and 545335202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545335201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170610 + ... + 173776.

It is an arithmetic number, because the mean of its divisors is an integer number (41285376).

Almost surely, 2^545335231 is an apocalyptic number.

545335231 is a deficient number, since it is larger than the sum of its proper divisors (115230785).

545335231 is a wasteful number, since it uses less digits than its factorization.

545335231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4638.

The product of its digits is 27000, while the sum is 31.

The square root of 545335231 is about 23352.4138152783. The cubic root of 545335231 is about 816.9983610184.

Adding to 545335231 its reverse (132533545), we get a palindrome (677868776).

The spelling of 545335231 in words is "five hundred forty-five million, three hundred thirty-five thousand, two hundred thirty-one".