3231558161 has 8 divisors (see below), whose sum is σ = 3502308264. Its totient is φ = 2963975040.

The previous prime is 3231558157. The next prime is 3231558181. The reversal of 3231558161 is 1618551323.

It can be written as a sum of positive squares in 4 ways, for example, as 1795600 + 3229762561 = 1340^2 + 56831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3231558161 - 2² = 3231558157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3231558181) 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 7 ways as a sum of consecutive naturals, for example, 789620 + ... + 793701.

It is an arithmetic number, because the mean of its divisors is an integer number (437788533).

Almost surely, 2^3231558161 is an apocalyptic number.

It is an amenable number.

3231558161 is a deficient number, since it is larger than the sum of its proper divisors (270750103).

3231558161 is a wasteful number, since it uses less digits than its factorization.

3231558161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1583491.

The product of its digits is 21600, while the sum is 35.

The square root of 3231558161 is about 56846.7955209438. The cubic root of 3231558161 is about 1478.4409808236.

The spelling of 3231558161 in words is "three billion, two hundred thirty-one million, five hundred fifty-eight thousand, one hundred sixty-one".