132821641 has 2 divisors, whose sum is σ = 132821642. Its totient is φ = 132821640.

The previous prime is 132821627. The next prime is 132821651. The reversal of 132821641 is 146128231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122766400 + 10055241 = 11080^2 + 3171^2 .

It is an emirp because it is prime and its reverse (146128231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132821641 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (132821651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66410820 + 66410821.

It is an arithmetic number, because the mean of its divisors is an integer number (66410821).

Almost surely, 2^132821641 is an apocalyptic number.

It is an amenable number.

132821641 is a deficient number, since it is larger than the sum of its proper divisors (1).

132821641 is an equidigital number, since it uses as much as digits as its factorization.

132821641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 28.

The square root of 132821641 is about 11524.8271570553. The cubic root of 132821641 is about 510.2185926976.

Adding to 132821641 its reverse (146128231), we get a palindrome (278949872).

The spelling of 132821641 in words is "one hundred thirty-two million, eight hundred twenty-one thousand, six hundred forty-one".