132541021 has 4 divisors (see below), whose sum is σ = 132757852. Its totient is φ = 132324192.

The previous prime is 132540997. The next prime is 132541033. The reversal of 132541021 is 120145231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120145231 = 29 ⋅4142939.

It can be written as a sum of positive squares in 2 ways, for example, as 44368921 + 88172100 = 6661^2 + 9390^2 .

It is a cyclic number.

It is not a de Polignac number, because 132541021 - 2¹⁵ = 132508253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 132541021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132541421) 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 3 ways as a sum of consecutive naturals, for example, 107496 + ... + 108721.

It is an arithmetic number, because the mean of its divisors is an integer number (33189463).

Almost surely, 2^132541021 is an apocalyptic number.

It is an amenable number.

132541021 is a deficient number, since it is larger than the sum of its proper divisors (216831).

132541021 is an equidigital number, since it uses as much as digits as its factorization.

132541021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216830.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 132541021 is about 11512.6461337088. The cubic root of 132541021 is about 509.8590165219.

Adding to 132541021 its reverse (120145231), we get a palindrome (252686252).

The spelling of 132541021 in words is "one hundred thirty-two million, five hundred forty-one thousand, twenty-one".