42147118 has 8 divisors (see below), whose sum is σ = 68083848. Its totient is φ = 19452504.

The previous prime is 42147113. The next prime is 42147191. The reversal of 42147118 is 81174124.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42147113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810496 + ... + 810547.

It is an arithmetic number, because the mean of its divisors is an integer number (8510481).

Almost surely, 2^42147118 is an apocalyptic number.

42147118 is a deficient number, since it is larger than the sum of its proper divisors (25936730).

42147118 is a wasteful number, since it uses less digits than its factorization.

42147118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621058.

The product of its digits is 1792, while the sum is 28.

The square root of 42147118 is about 6492.0811763255. The cubic root of 42147118 is about 348.0080534975.

The spelling of 42147118 in words is "forty-two million, one hundred forty-seven thousand, one hundred eighteen".