4102072161 has 32 divisors (see below), whose sum is σ = 6162697728. Its totient is φ = 2405504640.

The previous prime is 4102072159. The next prime is 4102072193. The reversal of 4102072161 is 1612702014.

It is not a de Polignac number, because 4102072161 - 2¹ = 4102072159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4102072151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138325 + ... + 165341.

It is an arithmetic number, because the mean of its divisors is an integer number (192584304).

Almost surely, 2^4102072161 is an apocalyptic number.

It is an amenable number.

4102072161 is a deficient number, since it is larger than the sum of its proper divisors (2060625567).

4102072161 is a wasteful number, since it uses less digits than its factorization.

4102072161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27181.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 4102072161 is about 64047.4211893032. The cubic root of 4102072161 is about 1600.7902555844.

Adding to 4102072161 its reverse (1612702014), we get a palindrome (5714774175).

The spelling of 4102072161 in words is "four billion, one hundred two million, seventy-two thousand, one hundred sixty-one".