132805261 has 2 divisors, whose sum is σ = 132805262. Its totient is φ = 132805260.

The previous prime is 132805259. The next prime is 132805279. The reversal of 132805261 is 162508231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 105452361 + 27352900 = 10269^2 + 5230^2 .

It is a cyclic number.

It is not a de Polignac number, because 132805261 - 2¹ = 132805259 is a prime.

Together with 132805259, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132805061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66402630 + 66402631.

It is an arithmetic number, because the mean of its divisors is an integer number (66402631).

Almost surely, 2^132805261 is an apocalyptic number.

It is an amenable number.

132805261 is a deficient number, since it is larger than the sum of its proper divisors (1).

132805261 is an equidigital number, since it uses as much as digits as its factorization.

132805261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 132805261 is about 11524.1164954195. The cubic root of 132805261 is about 510.1976178924.

The spelling of 132805261 in words is "one hundred thirty-two million, eight hundred five thousand, two hundred sixty-one".