142244535239 has 2 divisors, whose sum is σ = 142244535240. Its totient is φ = 142244535238.

The previous prime is 142244535229. The next prime is 142244535241. The reversal of 142244535239 is 932535442241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142244535239 - 2⁸ = 142244534983 is a prime.

It is a super-2 number, since 2×142244535239² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 142244535241, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142244535239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142244535229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71122267619 + 71122267620.

It is an arithmetic number, because the mean of its divisors is an integer number (71122267620).

Almost surely, 2^142244535239 is an apocalyptic number.

142244535239 is a deficient number, since it is larger than the sum of its proper divisors (1).

142244535239 is an equidigital number, since it uses as much as digits as its factorization.

142244535239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1036800, while the sum is 44.

The spelling of 142244535239 in words is "one hundred forty-two billion, two hundred forty-four million, five hundred thirty-five thousand, two hundred thirty-nine".