3471812161 has 4 divisors (see below), whose sum is σ = 3471971524. Its totient is φ = 3471652800.

The previous prime is 3471812159. The next prime is 3471812167. The reversal of 3471812161 is 1612181743.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1612181743 = 6803 ⋅236981.

It can be written as a sum of positive squares in 2 ways, for example, as 3171829761 + 299982400 = 56319^2 + 17320^2 .

It is a cyclic number.

It is not a de Polignac number, because 3471812161 - 2¹ = 3471812159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3471812167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40620 + ... + 92701.

It is an arithmetic number, because the mean of its divisors is an integer number (867992881).

Almost surely, 2^3471812161 is an apocalyptic number.

It is an amenable number.

3471812161 is a deficient number, since it is larger than the sum of its proper divisors (159363).

3471812161 is a wasteful number, since it uses less digits than its factorization.

3471812161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159362.

The product of its digits is 8064, while the sum is 34.

The square root of 3471812161 is about 58922.0855112919. The cubic root of 3471812161 is about 1514.2075478914.

The spelling of 3471812161 in words is "three billion, four hundred seventy-one million, eight hundred twelve thousand, one hundred sixty-one".