190042161 has 16 divisors (see below), whose sum is σ = 267939840. Its totient is φ = 119480400.

The previous prime is 190042147. The next prime is 190042187. The reversal of 190042161 is 161240091.

It is not a de Polignac number, because 190042161 - 2⁵ = 190042129 is a prime.

It is a super-2 number, since 2×190042161² = 72232045915099842, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (190042961) 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, 5236 + ... + 20186.

It is an arithmetic number, because the mean of its divisors is an integer number (16746240).

Almost surely, 2^190042161 is an apocalyptic number.

It is an amenable number.

190042161 is a deficient number, since it is larger than the sum of its proper divisors (77897679).

190042161 is a wasteful number, since it uses less digits than its factorization.

190042161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15196.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 190042161 is about 13785.5780074685. The cubic root of 190042161 is about 574.9322274250.

The spelling of 190042161 in words is "one hundred ninety million, forty-two thousand, one hundred sixty-one".