142405127 has 2 divisors, whose sum is σ = 142405128. Its totient is φ = 142405126.

The previous prime is 142405099. The next prime is 142405157. The reversal of 142405127 is 721504241.

It is a weak prime.

It is an emirp because it is prime and its reverse (721504241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142405127 - 2⁶ = 142405063 is a prime.

It is a super-3 number, since 3×142405127³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 142405096 and 142405105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142405157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71202563 + 71202564.

It is an arithmetic number, because the mean of its divisors is an integer number (71202564).

Almost surely, 2^142405127 is an apocalyptic number.

142405127 is a deficient number, since it is larger than the sum of its proper divisors (1).

142405127 is an equidigital number, since it uses as much as digits as its factorization.

142405127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 142405127 is about 11933.3619319955. The cubic root of 142405127 is about 522.2060212988.

Adding to 142405127 its reverse (721504241), we get a palindrome (863909368).

The spelling of 142405127 in words is "one hundred forty-two million, four hundred five thousand, one hundred twenty-seven".