142508039 has 2 divisors, whose sum is σ = 142508040. Its totient is φ = 142508038.

The previous prime is 142508033. The next prime is 142508099. The reversal of 142508039 is 930805241.

It is a weak prime.

It is an emirp because it is prime and its reverse (930805241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142508039 - 2²⁰ = 141459463 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 142507996 and 142508014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142508033) 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, 71254019 + 71254020.

It is an arithmetic number, because the mean of its divisors is an integer number (71254020).

Almost surely, 2^142508039 is an apocalyptic number.

142508039 is a deficient number, since it is larger than the sum of its proper divisors (1).

142508039 is an equidigital number, since it uses as much as digits as its factorization.

142508039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 142508039 is about 11937.6730982214. The cubic root of 142508039 is about 522.3317853230.

The spelling of 142508039 in words is "one hundred forty-two million, five hundred eight thousand, thirty-nine".