540203723 has 4 divisors (see below), whose sum is σ = 547603848. Its totient is φ = 532803600.

The previous prime is 540203717. The next prime is 540203749. The reversal of 540203723 is 327302045.

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 540203723 - 2⁴ = 540203707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 540203692 and 540203701.

It is not an unprimeable number, because it can be changed into a prime (540203753) 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, 3699953 + ... + 3700098.

It is an arithmetic number, because the mean of its divisors is an integer number (136900962).

Almost surely, 2^540203723 is an apocalyptic number.

540203723 is a deficient number, since it is larger than the sum of its proper divisors (7400125).

540203723 is an equidigital number, since it uses as much as digits as its factorization.

540203723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7400124.

The product of its (nonzero) digits is 5040, while the sum is 26.

The square root of 540203723 is about 23242.2830849295. The cubic root of 540203723 is about 814.4276775291.

Adding to 540203723 its reverse (327302045), we get a palindrome (867505768).

The spelling of 540203723 in words is "five hundred forty million, two hundred three thousand, seven hundred twenty-three".