57443161 has 4 divisors (see below), whose sum is σ = 57463012. Its totient is φ = 57423312.

The previous prime is 57443159. The next prime is 57443201. The reversal of 57443161 is 16134475.

57443161 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.

It can be written as a sum of positive squares in 2 ways, for example, as 30869136 + 26574025 = 5556^2 + 5155^2 .

It is a cyclic number.

It is not a de Polignac number, because 57443161 - 2¹ = 57443159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57443101) 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, 4650 + ... + 11683.

It is an arithmetic number, because the mean of its divisors is an integer number (14365753).

Almost surely, 2^57443161 is an apocalyptic number.

It is an amenable number.

57443161 is a deficient number, since it is larger than the sum of its proper divisors (19851).

57443161 is a wasteful number, since it uses less digits than its factorization.

57443161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19850.

The product of its digits is 10080, while the sum is 31.

The square root of 57443161 is about 7579.1266647286. The cubic root of 57443161 is about 385.8449111629.

The spelling of 57443161 in words is "fifty-seven million, four hundred forty-three thousand, one hundred sixty-one".