2132328581 has 8 divisors (see below), whose sum is σ = 2269108800. Its totient is φ = 1996809408.

The previous prime is 2132328577. The next prime is 2132328589. The reversal of 2132328581 is 1858232312.

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

It is a cyclic number.

It is not a de Polignac number, because 2132328581 - 2² = 2132328577 is a prime.

It is a super-2 number, since 2×2132328581² = 9093650354698947122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2132328589) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311771 + ... + 318536.

It is an arithmetic number, because the mean of its divisors is an integer number (283638600).

Almost surely, 2^2132328581 is an apocalyptic number.

It is an amenable number.

2132328581 is a deficient number, since it is larger than the sum of its proper divisors (136780219).

2132328581 is a wasteful number, since it uses less digits than its factorization.

2132328581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630523.

The product of its digits is 23040, while the sum is 35.

The square root of 2132328581 is about 46177.1434911256. The cubic root of 2132328581 is about 1287.1170482144.

The spelling of 2132328581 in words is "two billion, one hundred thirty-two million, three hundred twenty-eight thousand, five hundred eighty-one".