545989423 has 8 divisors (see below), whose sum is σ = 625996800. Its totient is φ = 466484280.

The previous prime is 545989403. The next prime is 545989441. The reversal of 545989423 is 324989545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545989423 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 (545989403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123223 + ... + 127576.

It is an arithmetic number, because the mean of its divisors is an integer number (78249600).

Almost surely, 2^545989423 is an apocalyptic number.

545989423 is a deficient number, since it is larger than the sum of its proper divisors (80007377).

545989423 is a wasteful number, since it uses less digits than its factorization.

545989423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251117.

The product of its digits is 1555200, while the sum is 49.

The square root of 545989423 is about 23366.4165630933. The cubic root of 545989423 is about 817.3249248046.

The spelling of 545989423 in words is "five hundred forty-five million, nine hundred eighty-nine thousand, four hundred twenty-three".