42142567 has 2 divisors, whose sum is σ = 42142568. Its totient is φ = 42142566.

The previous prime is 42142543. The next prime is 42142571. The reversal of 42142567 is 76524124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42142567 - 2¹¹ = 42140519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42142517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21071283 + 21071284.

It is an arithmetic number, because the mean of its divisors is an integer number (21071284).

Almost surely, 2^42142567 is an apocalyptic number.

42142567 is a deficient number, since it is larger than the sum of its proper divisors (1).

42142567 is an equidigital number, since it uses as much as digits as its factorization.

42142567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 31.

The square root of 42142567 is about 6491.7306629280. The cubic root of 42142567 is about 347.9955272028.

The spelling of 42142567 in words is "forty-two million, one hundred forty-two thousand, five hundred sixty-seven".