42144503 has 2 divisors, whose sum is σ = 42144504. Its totient is φ = 42144502.

The previous prime is 42144497. The next prime is 42144521. The reversal of 42144503 is 30544124.

42144503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42144503 - 2⁸ = 42144247 is a prime.

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 (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21072251 + 21072252.

It is an arithmetic number, because the mean of its divisors is an integer number (21072252).

Almost surely, 2^42144503 is an apocalyptic number.

42144503 is a deficient number, since it is larger than the sum of its proper divisors (1).

42144503 is an equidigital number, since it uses as much as digits as its factorization.

42144503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 42144503 is about 6491.8797739946. The cubic root of 42144503 is about 348.0008560115. Note that the first 3 decimals are identical.

Adding to 42144503 its reverse (30544124), we get a palindrome (72688627).

The spelling of 42144503 in words is "forty-two million, one hundred forty-four thousand, five hundred three".