132012261 has 20 divisors (see below), whose sum is σ = 198228492. Its totient is φ = 87550848.

The previous prime is 132012253. The next prime is 132012271. The reversal of 132012261 is 162210231.

It can be written as a sum of positive squares in 2 ways, for example, as 118396161 + 13616100 = 10881^2 + 3690^2 .

It is not a de Polignac number, because 132012261 - 2³ = 132012253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132012271) 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 19 ways as a sum of consecutive naturals, for example, 11821 + ... + 20093.

Almost surely, 2^132012261 is an apocalyptic number.

It is an amenable number.

132012261 is a deficient number, since it is larger than the sum of its proper divisors (66216231).

132012261 is an equidigital number, since it uses as much as digits as its factorization.

132012261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8482 (or 8473 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 132012261 is about 11489.6588722207. The cubic root of 132012261 is about 509.1801012858.

Adding to 132012261 its reverse (162210231), we get a palindrome (294222492).

The spelling of 132012261 in words is "one hundred thirty-two million, twelve thousand, two hundred sixty-one".