132521415 has 16 divisors (see below), whose sum is σ = 228344928. Its totient is φ = 65241216.

The previous prime is 132521413. The next prime is 132521449. The reversal of 132521415 is 514125231.

It is a happy number.

It is not a de Polignac number, because 132521415 - 2¹ = 132521413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132521413) 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 15 ways as a sum of consecutive naturals, for example, 339604 + ... + 339993.

It is an arithmetic number, because the mean of its divisors is an integer number (14271558).

Almost surely, 2^132521415 is an apocalyptic number.

132521415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

132521415 is a deficient number, since it is larger than the sum of its proper divisors (95823513).

132521415 is a wasteful number, since it uses less digits than its factorization.

132521415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679618.

The product of its digits is 1200, while the sum is 24.

The square root of 132521415 is about 11511.7946037966. The cubic root of 132521415 is about 509.8338751512.

Adding to 132521415 its reverse (514125231), we get a palindrome (646646646).

The spelling of 132521415 in words is "one hundred thirty-two million, five hundred twenty-one thousand, four hundred fifteen".