142268387 has 2 divisors, whose sum is σ = 142268388. Its totient is φ = 142268386.

The previous prime is 142268339. The next prime is 142268417. The reversal of 142268387 is 783862241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142268387 - 2⁶ = 142268323 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142268327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71134193 + 71134194.

It is an arithmetic number, because the mean of its divisors is an integer number (71134194).

Almost surely, 2^142268387 is an apocalyptic number.

142268387 is a deficient number, since it is larger than the sum of its proper divisors (1).

142268387 is an equidigital number, since it uses as much as digits as its factorization.

142268387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 41.

The square root of 142268387 is about 11927.6312401080. The cubic root of 142268387 is about 522.0388238570.

The spelling of 142268387 in words is "one hundred forty-two million, two hundred sixty-eight thousand, three hundred eighty-seven".