42162661 has 8 divisors (see below), whose sum is σ = 43252704. Its totient is φ = 41077680.

The previous prime is 42162643. The next prime is 42162751. The reversal of 42162661 is 16626124.

42162661 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 a de Polignac number, because none of the positive numbers 2^k-42162661 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 (42162641) by changing a digit.

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, 20115 + ... + 22111.

It is an arithmetic number, because the mean of its divisors is an integer number (5406588).

Almost surely, 2^42162661 is an apocalyptic number.

It is an amenable number.

42162661 is a deficient number, since it is larger than the sum of its proper divisors (1090043).

42162661 is a wasteful number, since it uses less digits than its factorization.

42162661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531.

The product of its digits is 3456, while the sum is 28.

The square root of 42162661 is about 6493.2781397380. The cubic root of 42162661 is about 348.0508276708.

Adding to 42162661 its reverse (16626124), we get a palindrome (58788785).

The spelling of 42162661 in words is "forty-two million, one hundred sixty-two thousand, six hundred sixty-one".