132521441 has 4 divisors (see below), whose sum is σ = 142715412. Its totient is φ = 122327472.

The previous prime is 132521413. The next prime is 132521449. The reversal of 132521441 is 144125231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 144125231 = 31 ⋅4649201.

It can be written as a sum of positive squares in 2 ways, for example, as 24049216 + 108472225 = 4904^2 + 10415^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132521441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132521449) 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, 5096966 + ... + 5096991.

It is an arithmetic number, because the mean of its divisors is an integer number (35678853).

Almost surely, 2^132521441 is an apocalyptic number.

It is an amenable number.

132521441 is a deficient number, since it is larger than the sum of its proper divisors (10193971).

132521441 is a wasteful number, since it uses less digits than its factorization.

132521441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10193970.

The product of its digits is 960, while the sum is 23.

The square root of 132521441 is about 11511.7957330731. The cubic root of 132521441 is about 509.8339084934.

Adding to 132521441 its reverse (144125231), we get a palindrome (276646672).

The spelling of 132521441 in words is "one hundred thirty-two million, five hundred twenty-one thousand, four hundred forty-one".