540510403 has 2 divisors, whose sum is σ = 540510404. Its totient is φ = 540510402.

The previous prime is 540510401. The next prime is 540510413. The reversal of 540510403 is 304015045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540510403 - 2¹ = 540510401 is a prime.

Together with 540510401, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (540510401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270255201 + 270255202.

It is an arithmetic number, because the mean of its divisors is an integer number (270255202).

Almost surely, 2^540510403 is an apocalyptic number.

540510403 is a deficient number, since it is larger than the sum of its proper divisors (1).

540510403 is an equidigital number, since it uses as much as digits as its factorization.

540510403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 540510403 is about 23248.8796074133. The cubic root of 540510403 is about 814.5817684266.

Adding to 540510403 its reverse (304015045), we get a palindrome (844525448).

The spelling of 540510403 in words is "five hundred forty million, five hundred ten thousand, four hundred three".