42118963 has 2 divisors, whose sum is σ = 42118964. Its totient is φ = 42118962.

The previous prime is 42118943. The next prime is 42118997. The reversal of 42118963 is 36981124.

42118963 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (42118997) can be obtained adding 42118963 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42118963 is a prime.

It is equal to p_2554387 and since 42118963 and 2554387 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (42118943) 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, 21059481 + 21059482.

It is an arithmetic number, because the mean of its divisors is an integer number (21059482).

Almost surely, 2^42118963 is an apocalyptic number.

42118963 is a deficient number, since it is larger than the sum of its proper divisors (1).

42118963 is an equidigital number, since it uses as much as digits as its factorization.

42118963 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 34.

The square root of 42118963 is about 6489.9124031068. The cubic root of 42118963 is about 347.9305444467.

The spelling of 42118963 in words is "forty-two million, one hundred eighteen thousand, nine hundred sixty-three".