142856938097987 has 2 divisors, whose sum is σ = 142856938097988. Its totient is φ = 142856938097986.

The previous prime is 142856938097933. The next prime is 142856938097999. The reversal of 142856938097987 is 789790839658241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142856938097987 - 2²⁶ = 142856870989123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142856938097899 and 142856938097908.

It is not a weakly prime, because it can be changed into another prime (142856938097917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71428469048993 + 71428469048994.

It is an arithmetic number, because the mean of its divisors is an integer number (71428469048994).

It is a 1-persistent number, because it is pandigital, but 2⋅142856938097987 = 285713876195974 is not.

Almost surely, 2^{142856938097987} is an apocalyptic number.

142856938097987 is a deficient number, since it is larger than the sum of its proper divisors (1).

142856938097987 is an equidigital number, since it uses as much as digits as its factorization.

142856938097987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13168189440, while the sum is 86.

The spelling of 142856938097987 in words is "one hundred forty-two trillion, eight hundred fifty-six billion, nine hundred thirty-eight million, ninety-seven thousand, nine hundred eighty-seven".