42459161 has 8 divisors (see below), whose sum is σ = 44171400. Its totient is φ = 40763520.

The previous prime is 42459143. The next prime is 42459163. The reversal of 42459161 is 16195424.

It can be written as a sum of positive squares in 4 ways, for example, as 3083536 + 39375625 = 1756^2 + 6275^2 .

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-42459161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42459163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1205 + ... + 9293.

It is an arithmetic number, because the mean of its divisors is an integer number (5521425).

Almost surely, 2^42459161 is an apocalyptic number.

It is an amenable number.

42459161 is a deficient number, since it is larger than the sum of its proper divisors (1712239).

42459161 is a wasteful number, since it uses less digits than its factorization.

42459161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8299.

The product of its digits is 8640, while the sum is 32.

The square root of 42459161 is about 6516.0694440744. The cubic root of 42459161 is about 348.8647872642.

The spelling of 42459161 in words is "forty-two million, four hundred fifty-nine thousand, one hundred sixty-one".