142332539 has 2 divisors, whose sum is σ = 142332540. Its totient is φ = 142332538.

The previous prime is 142332529. The next prime is 142332557. The reversal of 142332539 is 935233241.

It is a weak prime.

It is an emirp because it is prime and its reverse (935233241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142332539 - 2⁴ = 142332523 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142332529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71166269 + 71166270.

It is an arithmetic number, because the mean of its divisors is an integer number (71166270).

Almost surely, 2^142332539 is an apocalyptic number.

142332539 is a deficient number, since it is larger than the sum of its proper divisors (1).

142332539 is an equidigital number, since it uses as much as digits as its factorization.

142332539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 32.

The square root of 142332539 is about 11930.3201549665. The cubic root of 142332539 is about 522.1172783959.

The spelling of 142332539 in words is "one hundred forty-two million, three hundred thirty-two thousand, five hundred thirty-nine".