142235315239 has 2 divisors, whose sum is σ = 142235315240. Its totient is φ = 142235315238.

The previous prime is 142235315227. The next prime is 142235315249. The reversal of 142235315239 is 932513532241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142235315239 - 2¹¹ = 142235313191 is a prime.

It is a super-2 number, since 2×142235315239² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142235315249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71117657619 + 71117657620.

It is an arithmetic number, because the mean of its divisors is an integer number (71117657620).

Almost surely, 2^142235315239 is an apocalyptic number.

142235315239 is a deficient number, since it is larger than the sum of its proper divisors (1).

142235315239 is an equidigital number, since it uses as much as digits as its factorization.

142235315239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 40.

The spelling of 142235315239 in words is "one hundred forty-two billion, two hundred thirty-five million, three hundred fifteen thousand, two hundred thirty-nine".