42101518 has 8 divisors (see below), whose sum is σ = 63570960. Its totient is φ = 20911200.

The previous prime is 42101513. The next prime is 42101531. The reversal of 42101518 is 81510124.

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 (42101513) 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, 69403 + ... + 70006.

It is an arithmetic number, because the mean of its divisors is an integer number (7946370).

Almost surely, 2^42101518 is an apocalyptic number.

42101518 is a deficient number, since it is larger than the sum of its proper divisors (21469442).

42101518 is a wasteful number, since it uses less digits than its factorization.

42101518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139562.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 42101518 is about 6488.5682550159. The cubic root of 42101518 is about 347.8825020599.

The spelling of 42101518 in words is "forty-two million, one hundred one thousand, five hundred eighteen".