540142122523 has 2 divisors, whose sum is σ = 540142122524. Its totient is φ = 540142122522.

The previous prime is 540142122517. The next prime is 540142122581. The reversal of 540142122523 is 325221241045.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 540142122523 - 2¹³ = 540142114331 is a prime.

It is not a weakly prime, because it can be changed into another prime (540142122623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270071061261 + 270071061262.

It is an arithmetic number, because the mean of its divisors is an integer number (270071061262).

Almost surely, 2^540142122523 is an apocalyptic number.

540142122523 is a deficient number, since it is larger than the sum of its proper divisors (1).

540142122523 is an equidigital number, since it uses as much as digits as its factorization.

540142122523 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 31.

Adding to 540142122523 its reverse (325221241045), we get a palindrome (865363363568).

The spelling of 540142122523 in words is "five hundred forty billion, one hundred forty-two million, one hundred twenty-two thousand, five hundred twenty-three".