540503345 has 4 divisors (see below), whose sum is σ = 648604020. Its totient is φ = 432402672.

The previous prime is 540503339. The next prime is 540503347. The reversal of 540503345 is 543305045.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543305045 = 5 ⋅108661009.

It can be written as a sum of positive squares in 2 ways, for example, as 264810529 + 275692816 = 16273^2 + 16604^2 .

It is a cyclic number.

It is not a de Polignac number, because 540503345 - 2¹⁶ = 540437809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (540503347) 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, 54050330 + ... + 54050339.

It is an arithmetic number, because the mean of its divisors is an integer number (162151005).

Almost surely, 2^540503345 is an apocalyptic number.

It is an amenable number.

540503345 is a deficient number, since it is larger than the sum of its proper divisors (108100675).

540503345 is a wasteful number, since it uses less digits than its factorization.

540503345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108100674.

The product of its (nonzero) digits is 18000, while the sum is 29.

The square root of 540503345 is about 23248.7278146569. The cubic root of 540503345 is about 814.5782228007.

The spelling of 540503345 in words is "five hundred forty million, five hundred three thousand, three hundred forty-five".