42162061 has 4 divisors (see below), whose sum is σ = 42277312. Its totient is φ = 42046812.

The previous prime is 42162053. The next prime is 42162079. The reversal of 42162061 is 16026124.

42162061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42162061 - 2³ = 42162053 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 (42162031) 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 3 ways as a sum of consecutive naturals, for example, 57075 + ... + 57808.

It is an arithmetic number, because the mean of its divisors is an integer number (10569328).

Almost surely, 2^42162061 is an apocalyptic number.

It is an amenable number.

42162061 is a deficient number, since it is larger than the sum of its proper divisors (115251).

42162061 is a wasteful number, since it uses less digits than its factorization.

42162061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115250.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 42162061 is about 6493.2319379489. The cubic root of 42162061 is about 348.0491766722.

Adding to 42162061 its reverse (16026124), we get a palindrome (58188185).

The spelling of 42162061 in words is "forty-two million, one hundred sixty-two thousand, sixty-one".