42185015 has 8 divisors (see below), whose sum is σ = 50877600. Its totient is φ = 33577632.

The previous prime is 42184993. The next prime is 42185063. The reversal of 42185015 is 51058124.

42185015 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 a cyclic number.

It is not a de Polignac number, because 42185015 - 2⁶ = 42184951 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 20204 + ... + 22193.

It is an arithmetic number, because the mean of its divisors is an integer number (6359700).

Almost surely, 2^42185015 is an apocalyptic number.

42185015 is a deficient number, since it is larger than the sum of its proper divisors (8692585).

42185015 is a wasteful number, since it uses less digits than its factorization.

42185015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42601.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 42185015 is about 6494.9992301770. Note that the first 3 decimals coincide. The cubic root of 42185015 is about 348.1123272174.

The spelling of 42185015 in words is "forty-two million, one hundred eighty-five thousand, fifteen".