5142539 has 2 divisors, whose sum is σ = 5142540. Its totient is φ = 5142538.

The previous prime is 5142523. The next prime is 5142587. The reversal of 5142539 is 9352415.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5142539 - 2⁴ = 5142523 is a prime.

It is not a weakly prime, because it can be changed into another prime (5144539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2571269 + 2571270.

It is an arithmetic number, because the mean of its divisors is an integer number (2571270).

Almost surely, 2^5142539 is an apocalyptic number.

5142539 is a deficient number, since it is larger than the sum of its proper divisors (1).

5142539 is an equidigital number, since it uses as much as digits as its factorization.

5142539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 5142539 is about 2267.7166930638. The cubic root of 5142539 is about 172.6073154259.

The spelling of 5142539 in words is "five million, one hundred forty-two thousand, five hundred thirty-nine".