540553123 has 4 divisors (see below), whose sum is σ = 589694328. Its totient is φ = 491411920.

The previous prime is 540553109. The next prime is 540553133. The reversal of 540553123 is 321355045.

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 540553123 - 2¹³ = 540544931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 540553091 and 540553100.

It is not an unprimeable number, because it can be changed into a prime (540553133) 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 3 ways as a sum of consecutive naturals, for example, 24570586 + ... + 24570607.

It is an arithmetic number, because the mean of its divisors is an integer number (147423582).

Almost surely, 2^540553123 is an apocalyptic number.

540553123 is a deficient number, since it is larger than the sum of its proper divisors (49141205).

540553123 is a wasteful number, since it uses less digits than its factorization.

540553123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49141204.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 540553123 is about 23249.7983432115. The cubic root of 540553123 is about 814.6032283999.

The spelling of 540553123 in words is "five hundred forty million, five hundred fifty-three thousand, one hundred twenty-three".