545430133 has 4 divisors (see below), whose sum is σ = 546350508. Its totient is φ = 544509760.

The previous prime is 545430121. The next prime is 545430163. The reversal of 545430133 is 331034545.

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

It can be written as a sum of positive squares in 2 ways, for example, as 482988529 + 62441604 = 21977^2 + 7902^2 .

It is a cyclic number.

It is not a de Polignac number, because 545430133 - 2¹⁷ = 545299061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545430163) 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, 459298 + ... + 460483.

It is an arithmetic number, because the mean of its divisors is an integer number (136587627).

Almost surely, 2^545430133 is an apocalyptic number.

It is an amenable number.

545430133 is a deficient number, since it is larger than the sum of its proper divisors (920375).

545430133 is an equidigital number, since it uses as much as digits as its factorization.

545430133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920374.

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 545430133 is about 23354.4456795703. The cubic root of 545430133 is about 817.0457510009.

Adding to 545430133 its reverse (331034545), we get a palindrome (876464678).

The spelling of 545430133 in words is "five hundred forty-five million, four hundred thirty thousand, one hundred thirty-three".