142239105329 has 2 divisors, whose sum is σ = 142239105330. Its totient is φ = 142239105328.

The previous prime is 142239105289. The next prime is 142239105361. The reversal of 142239105329 is 923501932241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90688311025 + 51550794304 = 301145^2 + 227048^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142239105329 is a prime.

It is a super-3 number, since 3×142239105329³ (a number of 34 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (142239135329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71119552664 + 71119552665.

It is an arithmetic number, because the mean of its divisors is an integer number (71119552665).

Almost surely, 2^142239105329 is an apocalyptic number.

It is an amenable number.

142239105329 is a deficient number, since it is larger than the sum of its proper divisors (1).

142239105329 is an equidigital number, since it uses as much as digits as its factorization.

142239105329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 142239105329 in words is "one hundred forty-two billion, two hundred thirty-nine million, one hundred five thousand, three hundred twenty-nine".