161575041 has 16 divisors (see below), whose sum is σ = 221859200. Its totient is φ = 104519808.

The previous prime is 161575039. The next prime is 161575067. The reversal of 161575041 is 140575161.

It is not a de Polignac number, because 161575041 - 2¹ = 161575039 is a prime.

It is a super-2 number, since 2×161575041² = 52212987748303362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161575091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43620 + ... + 47178.

It is an arithmetic number, because the mean of its divisors is an integer number (13866200).

Almost surely, 2^161575041 is an apocalyptic number.

It is an amenable number.

161575041 is a deficient number, since it is larger than the sum of its proper divisors (60284159).

161575041 is a wasteful number, since it uses less digits than its factorization.

161575041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4008.

The product of its (nonzero) digits is 4200, while the sum is 30.

The square root of 161575041 is about 12711.2171329106. The cubic root of 161575041 is about 544.6590926954.

The spelling of 161575041 in words is "one hundred sixty-one million, five hundred seventy-five thousand, forty-one".