8505142 has 8 divisors (see below), whose sum is σ = 13054536. Its totient is φ = 4153632.

The previous prime is 8505137. The next prime is 8505187. The reversal of 8505142 is 2415058.

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

It is a congruent number.

It is an unprimeable number.

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, 49363 + ... + 49534.

It is an arithmetic number, because the mean of its divisors is an integer number (1631817).

Almost surely, 2^8505142 is an apocalyptic number.

8505142 is a deficient number, since it is larger than the sum of its proper divisors (4549394).

8505142 is a wasteful number, since it uses less digits than its factorization.

8505142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98942.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 8505142 is about 2916.3576598216. The cubic root of 8505142 is about 204.1238994877.

The spelling of 8505142 in words is "eight million, five hundred five thousand, one hundred forty-two".