42144563 has 4 divisors (see below), whose sum is σ = 42198240. Its totient is φ = 42090888.

The previous prime is 42144559. The next prime is 42144577. The reversal of 42144563 is 36544124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42144563 - 2² = 42144559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42144503) 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 in 3 ways as a sum of consecutive naturals, for example, 25643 + ... + 27236.

It is an arithmetic number, because the mean of its divisors is an integer number (10549560).

Almost surely, 2^42144563 is an apocalyptic number.

42144563 is a deficient number, since it is larger than the sum of its proper divisors (53677).

42144563 is an equidigital number, since it uses as much as digits as its factorization.

42144563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53676.

The product of its digits is 11520, while the sum is 29.

The square root of 42144563 is about 6491.8843951506. The cubic root of 42144563 is about 348.0010211579.

Adding to 42144563 its reverse (36544124), we get a palindrome (78688687).

The spelling of 42144563 in words is "forty-two million, one hundred forty-four thousand, five hundred sixty-three".