545267231 has 4 divisors (see below), whose sum is σ = 577341792. Its totient is φ = 513192672.

The previous prime is 545267221. The next prime is 545267237. The reversal of 545267231 is 132762545.

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 545267231 - 2²⁶ = 478158367 is a prime.

It is a super-2 number, since 2×545267231² = 594632706404814722, 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 = 545267191 and 545267200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545267237) 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, 16037255 + ... + 16037288.

It is an arithmetic number, because the mean of its divisors is an integer number (144335448).

Almost surely, 2^545267231 is an apocalyptic number.

545267231 is a deficient number, since it is larger than the sum of its proper divisors (32074561).

545267231 is a wasteful number, since it uses less digits than its factorization.

545267231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32074560.

The product of its digits is 50400, while the sum is 35.

The square root of 545267231 is about 23350.9578176142. The cubic root of 545267231 is about 816.9644013579.

The spelling of 545267231 in words is "five hundred forty-five million, two hundred sixty-seven thousand, two hundred thirty-one".