142463256139 has 2 divisors, whose sum is σ = 142463256140. Its totient is φ = 142463256138.

The previous prime is 142463256137. The next prime is 142463256151. The reversal of 142463256139 is 931652364241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142463256139 - 2¹ = 142463256137 is a prime.

Together with 142463256137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (142463256137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71231628069 + 71231628070.

It is an arithmetic number, because the mean of its divisors is an integer number (71231628070).

Almost surely, 2^142463256139 is an apocalyptic number.

142463256139 is a deficient number, since it is larger than the sum of its proper divisors (1).

142463256139 is an equidigital number, since it uses as much as digits as its factorization.

142463256139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 46.

The spelling of 142463256139 in words is "one hundred forty-two billion, four hundred sixty-three million, two hundred fifty-six thousand, one hundred thirty-nine".