42620143 has 2 divisors, whose sum is σ = 42620144. Its totient is φ = 42620142.

The previous prime is 42620141. The next prime is 42620147. The reversal of 42620143 is 34102624.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42620143 - 2¹ = 42620141 is a prime.

Together with 42620141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42620141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21310071 + 21310072.

It is an arithmetic number, because the mean of its divisors is an integer number (21310072).

Almost surely, 2^42620143 is an apocalyptic number.

42620143 is a deficient number, since it is larger than the sum of its proper divisors (1).

42620143 is an equidigital number, since it uses as much as digits as its factorization.

42620143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 42620143 is about 6528.4104497190. The cubic root of 42620143 is about 349.3051329340.

Adding to 42620143 its reverse (34102624), we get a palindrome (76722767).

The spelling of 42620143 in words is "forty-two million, six hundred twenty thousand, one hundred forty-three".