132523540 has 12 divisors (see below), whose sum is σ = 278299476. Its totient is φ = 53009408.

The previous prime is 132523513. The next prime is 132523541. The reversal of 132523540 is 45325231.

It can be written as a sum of positive squares in 2 ways, for example, as 28238596 + 104284944 = 5314^2 + 10212^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132523541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3313069 + ... + 3313108.

It is an arithmetic number, because the mean of its divisors is an integer number (23191623).

Almost surely, 2^132523540 is an apocalyptic number.

132523540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

132523540 is an abundant number, since it is smaller than the sum of its proper divisors (145775936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

132523540 is a wasteful number, since it uses less digits than its factorization.

132523540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6626186 (or 6626184 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 132523540 is about 11511.8869000699. The cubic root of 132523540 is about 509.8366002232.

Adding to 132523540 its reverse (45325231), we get a palindrome (177848771).

The spelling of 132523540 in words is "one hundred thirty-two million, five hundred twenty-three thousand, five hundred forty".