132575821 has 6 divisors (see below), whose sum is σ = 154220910. Its totient is φ = 113636376.

The previous prime is 132575777. The next prime is 132575827. The reversal of 132575821 is 128575231.

It can be written as a sum of positive squares in only one way, i.e., 124657225 + 7918596 = 11165^2 + 2814^2 .

It is not a de Polignac number, because 132575821 - 2⁷ = 132575693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132575827) 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 5 ways as a sum of consecutive naturals, for example, 1352766 + ... + 1352863.

It is an arithmetic number, because the mean of its divisors is an integer number (25703485).

Almost surely, 2^132575821 is an apocalyptic number.

It is an amenable number.

132575821 is a deficient number, since it is larger than the sum of its proper divisors (21645089).

132575821 is an equidigital number, since it uses as much as digits as its factorization.

132575821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2705643 (or 2705636 counting only the distinct ones).

The product of its digits is 16800, while the sum is 34.

The square root of 132575821 is about 11514.1574159814. The cubic root of 132575821 is about 509.9036355160.

The spelling of 132575821 in words is "one hundred thirty-two million, five hundred seventy-five thousand, eight hundred twenty-one".