132540305 has 4 divisors (see below), whose sum is σ = 159048372. Its totient is φ = 106032240.

The previous prime is 132540281. The next prime is 132540307. The reversal of 132540305 is 503045231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46403344 + 86136961 = 6812^2 + 9281^2 .

It is not a de Polignac number, because 132540305 - 2¹⁸ = 132278161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132540307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13254026 + ... + 13254035.

It is an arithmetic number, because the mean of its divisors is an integer number (39762093).

Almost surely, 2^132540305 is an apocalyptic number.

It is an amenable number.

132540305 is a deficient number, since it is larger than the sum of its proper divisors (26508067).

132540305 is an equidigital number, since it uses as much as digits as its factorization.

132540305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26508066.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 132540305 is about 11512.6150374274. The cubic root of 132540305 is about 509.8580984169.

Adding to 132540305 its reverse (503045231), we get a palindrome (635585536).

The spelling of 132540305 in words is "one hundred thirty-two million, five hundred forty thousand, three hundred five".