132965821 has 2 divisors, whose sum is σ = 132965822. Its totient is φ = 132965820.

The previous prime is 132965813. The next prime is 132965831. The reversal of 132965821 is 128569231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77686596 + 55279225 = 8814^2 + 7435^2 .

It is a cyclic number.

It is not a de Polignac number, because 132965821 - 2³ = 132965813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132965801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66482910 + 66482911.

It is an arithmetic number, because the mean of its divisors is an integer number (66482911).

Almost surely, 2^132965821 is an apocalyptic number.

It is an amenable number.

132965821 is a deficient number, since it is larger than the sum of its proper divisors (1).

132965821 is an equidigital number, since it uses as much as digits as its factorization.

132965821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 37.

The square root of 132965821 is about 11531.0806518730. The cubic root of 132965821 is about 510.4031427306.

The spelling of 132965821 in words is "one hundred thirty-two million, nine hundred sixty-five thousand, eight hundred twenty-one".