132551281 has 2 divisors, whose sum is σ = 132551282. Its totient is φ = 132551280.

The previous prime is 132551269. The next prime is 132551291. The reversal of 132551281 is 182155231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68807025 + 63744256 = 8295^2 + 7984^2 .

It is an emirp because it is prime and its reverse (182155231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 132551281 - 2¹¹ = 132549233 is a prime.

It is a super-2 number, since 2×132551281² = 35139684189481922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (132551291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66275640 + 66275641.

It is an arithmetic number, because the mean of its divisors is an integer number (66275641).

Almost surely, 2^132551281 is an apocalyptic number.

It is an amenable number.

132551281 is a deficient number, since it is larger than the sum of its proper divisors (1).

132551281 is an equidigital number, since it uses as much as digits as its factorization.

132551281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2400, while the sum is 28.

The square root of 132551281 is about 11513.0917220354. The cubic root of 132551281 is about 509.8721722440.

The spelling of 132551281 in words is "one hundred thirty-two million, five hundred fifty-one thousand, two hundred eighty-one".