42576161 has 4 divisors (see below), whose sum is σ = 42590532. Its totient is φ = 42561792.

The previous prime is 42576139. The next prime is 42576167. The reversal of 42576161 is 16167524.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35473936 + 7102225 = 5956^2 + 2665^2 .

It is a cyclic number.

It is not a de Polignac number, because 42576161 - 2¹⁸ = 42314017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42576167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 920 + ... + 9273.

It is an arithmetic number, because the mean of its divisors is an integer number (10647633).

Almost surely, 2^42576161 is an apocalyptic number.

It is an amenable number.

42576161 is a deficient number, since it is larger than the sum of its proper divisors (14371).

42576161 is a wasteful number, since it uses less digits than its factorization.

42576161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14370.

The product of its digits is 10080, while the sum is 32.

The square root of 42576161 is about 6525.0410726677. The cubic root of 42576161 is about 349.1849360429.

The spelling of 42576161 in words is "forty-two million, five hundred seventy-six thousand, one hundred sixty-one".