142426871 has 2 divisors, whose sum is σ = 142426872. Its totient is φ = 142426870.

The previous prime is 142426849. The next prime is 142426891. The reversal of 142426871 is 178624241.

It is a strong prime.

It is an emirp because it is prime and its reverse (178624241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142426871 - 2⁶ = 142426807 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142426891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71213435 + 71213436.

It is an arithmetic number, because the mean of its divisors is an integer number (71213436).

Almost surely, 2^142426871 is an apocalyptic number.

142426871 is a deficient number, since it is larger than the sum of its proper divisors (1).

142426871 is an equidigital number, since it uses as much as digits as its factorization.

142426871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 35.

The square root of 142426871 is about 11934.2729564896. The cubic root of 142426871 is about 522.2325986889.

The spelling of 142426871 in words is "one hundred forty-two million, four hundred twenty-six thousand, eight hundred seventy-one".