142128127 has 2 divisors, whose sum is σ = 142128128. Its totient is φ = 142128126.

The previous prime is 142128089. The next prime is 142128157. The reversal of 142128127 is 721821241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142128127 - 2²³ = 133739519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142128095 and 142128104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142128157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71064063 + 71064064.

It is an arithmetic number, because the mean of its divisors is an integer number (71064064).

Almost surely, 2^142128127 is an apocalyptic number.

142128127 is a deficient number, since it is larger than the sum of its proper divisors (1).

142128127 is an equidigital number, since it uses as much as digits as its factorization.

142128127 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1792, while the sum is 28.

The square root of 142128127 is about 11921.7501651393. The cubic root of 142128127 is about 521.8672110279.

Adding to 142128127 its reverse (721821241), we get a palindrome (863949368).

The spelling of 142128127 in words is "one hundred forty-two million, one hundred twenty-eight thousand, one hundred twenty-seven".