540542423 has 2 divisors, whose sum is σ = 540542424. Its totient is φ = 540542422.

The previous prime is 540542417. The next prime is 540542449. The reversal of 540542423 is 324245045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540542423 - 2¹⁶ = 540476887 is a prime.

It is a super-2 number, since 2×540542423² = 584372222125421858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540542413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270271211 + 270271212.

It is an arithmetic number, because the mean of its divisors is an integer number (270271212).

Almost surely, 2^540542423 is an apocalyptic number.

540542423 is a deficient number, since it is larger than the sum of its proper divisors (1).

540542423 is an equidigital number, since it uses as much as digits as its factorization.

540542423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 540542423 is about 23249.5682325500. The cubic root of 540542423 is about 814.5978534659.

Adding to 540542423 its reverse (324245045), we get a palindrome (864787468).

The spelling of 540542423 in words is "five hundred forty million, five hundred forty-two thousand, four hundred twenty-three".