8117542 has 8 divisors (see below), whose sum is σ = 12302136. Its totient is φ = 4016832.

The previous prime is 8117537. The next prime is 8117561. The reversal of 8117542 is 2457118.

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

It is a self number, because there is not a number n which added to its sum of digits gives 8117542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20728 + ... + 21115.

It is an arithmetic number, because the mean of its divisors is an integer number (1537767).

Almost surely, 2^8117542 is an apocalyptic number.

8117542 is a deficient number, since it is larger than the sum of its proper divisors (4184594).

8117542 is a wasteful number, since it uses less digits than its factorization.

8117542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41942.

The product of its digits is 2240, while the sum is 28.

The square root of 8117542 is about 2849.1300426621. The cubic root of 8117542 is about 200.9747581810.

The spelling of 8117542 in words is "eight million, one hundred seventeen thousand, five hundred forty-two".