132780281 has 2 divisors, whose sum is σ = 132780282. Its totient is φ = 132780280.

The previous prime is 132780253. The next prime is 132780301. The reversal of 132780281 is 182087231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126450025 + 6330256 = 11245^2 + 2516^2 .

It is an emirp because it is prime and its reverse (182087231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132780281 is a prime.

It is a super-2 number, since 2×132780281² = 35261206044877922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (132780481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66390140 + 66390141.

It is an arithmetic number, because the mean of its divisors is an integer number (66390141).

Almost surely, 2^132780281 is an apocalyptic number.

It is an amenable number.

132780281 is a deficient number, since it is larger than the sum of its proper divisors (1).

132780281 is an equidigital number, since it uses as much as digits as its factorization.

132780281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 132780281 is about 11523.0326303452. The cubic root of 132780281 is about 510.1656273534.

The spelling of 132780281 in words is "one hundred thirty-two million, seven hundred eighty thousand, two hundred eighty-one".