545994239 has 8 divisors (see below), whose sum is σ = 624136320. Its totient is φ = 467887896.

The previous prime is 545994173. The next prime is 545994277. The reversal of 545994239 is 932499545.

It is a happy number.

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

It is not a de Polignac number, because 545994239 - 2¹⁶ = 545928703 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 (545994299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48092 + ... + 58350.

It is an arithmetic number, because the mean of its divisors is an integer number (78017040).

Almost surely, 2^545994239 is an apocalyptic number.

545994239 is a deficient number, since it is larger than the sum of its proper divisors (78142081).

545994239 is a wasteful number, since it uses less digits than its factorization.

545994239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17869.

The product of its digits is 1749600, while the sum is 50.

The square root of 545994239 is about 23366.5196167508. The cubic root of 545994239 is about 817.3273279190.

The spelling of 545994239 in words is "five hundred forty-five million, nine hundred ninety-four thousand, two hundred thirty-nine".