42143027 has 2 divisors, whose sum is σ = 42143028. Its totient is φ = 42143026.

The previous prime is 42142987. The next prime is 42143029. The reversal of 42143027 is 72034124.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42143027 is a prime.

Together with 42143029, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 42142993 and 42143011.

It is not a weakly prime, because it can be changed into another prime (42143029) 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, 21071513 + 21071514.

It is an arithmetic number, because the mean of its divisors is an integer number (21071514).

Almost surely, 2^42143027 is an apocalyptic number.

42143027 is a deficient number, since it is larger than the sum of its proper divisors (1).

42143027 is an equidigital number, since it uses as much as digits as its factorization.

42143027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 42143027 is about 6491.7660925206. The cubic root of 42143027 is about 347.9967933602.

The spelling of 42143027 in words is "forty-two million, one hundred forty-three thousand, twenty-seven".