42590143 has 2 divisors, whose sum is σ = 42590144. Its totient is φ = 42590142.

The previous prime is 42590099. The next prime is 42590159. The reversal of 42590143 is 34109524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42590143 - 2¹⁷ = 42459071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42590543) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21295071 + 21295072.

It is an arithmetic number, because the mean of its divisors is an integer number (21295072).

Almost surely, 2^42590143 is an apocalyptic number.

42590143 is a deficient number, since it is larger than the sum of its proper divisors (1).

42590143 is an equidigital number, since it uses as much as digits as its factorization.

42590143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 42590143 is about 6526.1123955997. The cubic root of 42590143 is about 349.2231559396.

Adding to 42590143 its reverse (34109524), we get a palindrome (76699667).

The spelling of 42590143 in words is "forty-two million, five hundred ninety thousand, one hundred forty-three".