42163287 has 8 divisors (see below), whose sum is σ = 56622720. Its totient is φ = 27906360.

The previous prime is 42163283. The next prime is 42163309. The reversal of 42163287 is 78236124.

42163287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42163287 - 2² = 42163283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42163283) 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 in 7 ways as a sum of consecutive naturals, for example, 50139 + ... + 50972.

It is an arithmetic number, because the mean of its divisors is an integer number (7077840).

Almost surely, 2^42163287 is an apocalyptic number.

42163287 is a deficient number, since it is larger than the sum of its proper divisors (14459433).

42163287 is a wasteful number, since it uses less digits than its factorization.

42163287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101253.

The product of its digits is 16128, while the sum is 33.

The square root of 42163287 is about 6493.3263432543. The cubic root of 42163287 is about 348.0525501960.

It can be divided in two parts, 4216 and 3287, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 42163287 in words is "forty-two million, one hundred sixty-three thousand, two hundred eighty-seven".