42215143 has 8 divisors (see below), whose sum is σ = 44390016. Its totient is φ = 40068600.

The previous prime is 42215141. The next prime is 42215161. The reversal of 42215143 is 34151224.

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

It is a cyclic number.

It is not a de Polignac number, because 42215143 - 2¹ = 42215141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42215141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3993 + ... + 10018.

It is an arithmetic number, because the mean of its divisors is an integer number (5548752).

Almost surely, 2^42215143 is an apocalyptic number.

42215143 is a deficient number, since it is larger than the sum of its proper divisors (2174873).

42215143 is a wasteful number, since it uses less digits than its factorization.

42215143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14165.

The product of its digits is 960, while the sum is 22.

The square root of 42215143 is about 6497.3181390478. The cubic root of 42215143 is about 348.1951799587.

Adding to 42215143 its reverse (34151224), we get a palindrome (76366367).

The spelling of 42215143 in words is "forty-two million, two hundred fifteen thousand, one hundred forty-three".