42144143 has 2 divisors, whose sum is σ = 42144144. Its totient is φ = 42144142.

The previous prime is 42144133. The next prime is 42144161. The reversal of 42144143 is 34144124.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42144143 - 2⁶ = 42144079 is a prime.

It is a super-2 number, since 2×42144143² = 3552257578408898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42144103) 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, 21072071 + 21072072.

It is an arithmetic number, because the mean of its divisors is an integer number (21072072).

Almost surely, 2^42144143 is an apocalyptic number.

42144143 is a deficient number, since it is larger than the sum of its proper divisors (1).

42144143 is an equidigital number, since it uses as much as digits as its factorization.

42144143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 23.

The square root of 42144143 is about 6491.8520469894. The cubic root of 42144143 is about 347.9998651296. Note that the first 3 decimals are identical.

Adding to 42144143 its reverse (34144124), we get a palindrome (76288267).

The spelling of 42144143 in words is "forty-two million, one hundred forty-four thousand, one hundred forty-three".