540515159 has 2 divisors, whose sum is σ = 540515160. Its totient is φ = 540515158.

The previous prime is 540515149. The next prime is 540515161. The reversal of 540515159 is 951515045.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540515159 is a prime.

Together with 540515161, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (540515149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270257579 + 270257580.

It is an arithmetic number, because the mean of its divisors is an integer number (270257580).

Almost surely, 2^540515159 is an apocalyptic number.

540515159 is a deficient number, since it is larger than the sum of its proper divisors (1).

540515159 is an equidigital number, since it uses as much as digits as its factorization.

540515159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 540515159 is about 23248.9818916872. The cubic root of 540515159 is about 814.5841576125.

The spelling of 540515159 in words is "five hundred forty million, five hundred fifteen thousand, one hundred fifty-nine".