42112165 has 8 divisors (see below), whose sum is σ = 50646528. Its totient is φ = 33615120.

The previous prime is 42112163. The next prime is 42112171. The reversal of 42112165 is 56121124.

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

It is not a de Polignac number, because 42112165 - 2¹ = 42112163 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 (42112163) 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, 6781 + ... + 11410.

It is an arithmetic number, because the mean of its divisors is an integer number (6330816).

Almost surely, 2^42112165 is an apocalyptic number.

It is an amenable number.

42112165 is a deficient number, since it is larger than the sum of its proper divisors (8534363).

42112165 is a wasteful number, since it uses less digits than its factorization.

42112165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18659.

The product of its digits is 480, while the sum is 22.

The square root of 42112165 is about 6489.3886460899. The cubic root of 42112165 is about 347.9118247779.

Adding to 42112165 its reverse (56121124), we get a palindrome (98233289).

The spelling of 42112165 in words is "forty-two million, one hundred twelve thousand, one hundred sixty-five".