641316132 has 36 divisors (see below), whose sum is σ = 1635461100. Its totient is φ = 211878912.

The previous prime is 641316113. The next prime is 641316149. The reversal of 641316132 is 231613146.

641316132 is a `hidden beast` number, since 6 + 41 + 3 + 1 + 613 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 65028096 + 576288036 = 8064^2 + 24006^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×641316132³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 641316096 and 641316105.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74757 + ... + 82892.

It is an arithmetic number, because the mean of its divisors is an integer number (45429475).

Almost surely, 2^641316132 is an apocalyptic number.

It is an amenable number.

641316132 is an abundant number, since it is smaller than the sum of its proper divisors (994144968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641316132 is a wasteful number, since it uses less digits than its factorization.

641316132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157772 (or 157767 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 641316132 is about 25324.2202644030. The cubic root of 641316132 is about 862.3642049601.

Adding to 641316132 its reverse (231613146), we get a palindrome (872929278).

The spelling of 641316132 in words is "six hundred forty-one million, three hundred sixteen thousand, one hundred thirty-two".