549475123 has 4 divisors (see below), whose sum is σ = 564325840. Its totient is φ = 534624408.

The previous prime is 549475097. The next prime is 549475141. The reversal of 549475123 is 321574945.

It is a happy number.

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 549475123 - 2²⁹ = 12604211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549475183) 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, 7425303 + ... + 7425376.

It is an arithmetic number, because the mean of its divisors is an integer number (141081460).

Almost surely, 2^549475123 is an apocalyptic number.

549475123 is a deficient number, since it is larger than the sum of its proper divisors (14850717).

549475123 is a wasteful number, since it uses less digits than its factorization.

549475123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14850716.

The product of its digits is 151200, while the sum is 40.

The square root of 549475123 is about 23440.8857127882. The cubic root of 549475123 is about 819.0605555928.

The spelling of 549475123 in words is "five hundred forty-nine million, four hundred seventy-five thousand, one hundred twenty-three".