42573161 has 16 divisors (see below), whose sum is σ = 45705600. Its totient is φ = 39566208.

The previous prime is 42573127. The next prime is 42573173. The reversal of 42573161 is 16137524.

42573161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42573161 - 2¹⁰ = 42572137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42573361) 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 15 ways as a sum of consecutive naturals, for example, 185795 + ... + 186023.

It is an arithmetic number, because the mean of its divisors is an integer number (2856600).

Almost surely, 2^42573161 is an apocalyptic number.

It is an amenable number.

42573161 is a deficient number, since it is larger than the sum of its proper divisors (3132439).

42573161 is a wasteful number, since it uses less digits than its factorization.

42573161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448.

The product of its digits is 5040, while the sum is 29.

The square root of 42573161 is about 6524.8111850076. The cubic root of 42573161 is about 349.1767344312.

It can be divided in two parts, 42573 and 161, that multiplied together give a triangular number (6854253 = T₃₇₀₂).

The spelling of 42573161 in words is "forty-two million, five hundred seventy-three thousand, one hundred sixty-one".