42175661 has 8 divisors (see below), whose sum is σ = 46110144. Its totient is φ = 38257920.

The previous prime is 42175631. The next prime is 42175663. The reversal of 42175661 is 16657124.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42175661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42175663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1421 + ... + 9293.

It is an arithmetic number, because the mean of its divisors is an integer number (5763768).

Almost surely, 2^42175661 is an apocalyptic number.

It is an amenable number.

42175661 is a deficient number, since it is larger than the sum of its proper divisors (3934483).

42175661 is a wasteful number, since it uses less digits than its factorization.

42175661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8371.

The product of its digits is 10080, while the sum is 32.

The square root of 42175661 is about 6494.2790977906. The cubic root of 42175661 is about 348.0865954624.

The spelling of 42175661 in words is "forty-two million, one hundred seventy-five thousand, six hundred sixty-one".