42967161 has 6 divisors (see below), whose sum is σ = 62063690. Its totient is φ = 28644768.

The previous prime is 42967157. The next prime is 42967207. The reversal of 42967161 is 16176924.

42967161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 40717161 + 2250000 = 6381^2 + 1500^2 .

It is not a de Polignac number, because 42967161 - 2² = 42967157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42967121) 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 5 ways as a sum of consecutive naturals, for example, 2387056 + ... + 2387073.

Almost surely, 2^42967161 is an apocalyptic number.

It is an amenable number.

42967161 is a deficient number, since it is larger than the sum of its proper divisors (19096529).

42967161 is a wasteful number, since it uses less digits than its factorization.

42967161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774135 (or 4774132 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 42967161 is about 6554.9340957785. The cubic root of 42967161 is about 350.2505987606.

The spelling of 42967161 in words is "forty-two million, nine hundred sixty-seven thousand, one hundred sixty-one".