3217165541 has 4 divisors (see below), whose sum is σ = 3222591372. Its totient is φ = 3211739712.

The previous prime is 3217165531. The next prime is 3217165543. The reversal of 3217165541 is 1455617123.

It is a happy number.

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 2197640641 + 1019524900 = 46879^2 + 31930^2 .

It is a cyclic number.

It is not a de Polignac number, because 3217165541 - 2⁶ = 3217165477 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3217165543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2712026 + ... + 2713211.

It is an arithmetic number, because the mean of its divisors is an integer number (805647843).

Almost surely, 2^3217165541 is an apocalyptic number.

It is an amenable number.

3217165541 is a deficient number, since it is larger than the sum of its proper divisors (5425831).

3217165541 is an equidigital number, since it uses as much as digits as its factorization.

3217165541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5425830.

The product of its digits is 25200, while the sum is 35.

The square root of 3217165541 is about 56720.0629495419. The cubic root of 3217165541 is about 1476.2428350555.

The spelling of 3217165541 in words is "three billion, two hundred seventeen million, one hundred sixty-five thousand, five hundred forty-one".