142718999 has 2 divisors, whose sum is σ = 142719000. Its totient is φ = 142718998.

The previous prime is 142718993. The next prime is 142719001. The reversal of 142718999 is 999817241.

It is a strong prime.

It is an emirp because it is prime and its reverse (999817241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142718999 - 2¹² = 142714903 is a prime.

Together with 142719001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142718993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71359499 + 71359500.

It is an arithmetic number, because the mean of its divisors is an integer number (71359500).

Almost surely, 2^142718999 is an apocalyptic number.

142718999 is a deficient number, since it is larger than the sum of its proper divisors (1).

142718999 is an equidigital number, since it uses as much as digits as its factorization.

142718999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 50.

The square root of 142718999 is about 11946.5057234323. The cubic root of 142718999 is about 522.5894006957.

The spelling of 142718999 in words is "one hundred forty-two million, seven hundred eighteen thousand, nine hundred ninety-nine".