540303251 has 4 divisors (see below), whose sum is σ = 540353904. Its totient is φ = 540252600.

The previous prime is 540303233. The next prime is 540303259. The reversal of 540303251 is 152303045.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 540303251 - 2⁶ = 540303187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (540303259) 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, 2420 + ... + 32961.

It is an arithmetic number, because the mean of its divisors is an integer number (135088476).

Almost surely, 2^540303251 is an apocalyptic number.

540303251 is a deficient number, since it is larger than the sum of its proper divisors (50653).

540303251 is a wasteful number, since it uses less digits than its factorization.

540303251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50652.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 540303251 is about 23244.4240840680. The cubic root of 540303251 is about 814.4776916114.

Adding to 540303251 its reverse (152303045), we get a palindrome (692606296).

The spelling of 540303251 in words is "five hundred forty million, three hundred three thousand, two hundred fifty-one".