132521551 has 4 divisors (see below), whose sum is σ = 133808272. Its totient is φ = 131234832.

The previous prime is 132521549. The next prime is 132521563. The reversal of 132521551 is 155125231.

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

It is a cyclic number.

It is not a de Polignac number, because 132521551 - 2¹ = 132521549 is a prime.

It is a super-2 number, since 2×132521551² = 35123922958891202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132521581) 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, 643206 + ... + 643411.

It is an arithmetic number, because the mean of its divisors is an integer number (33452068).

Almost surely, 2^132521551 is an apocalyptic number.

132521551 is a deficient number, since it is larger than the sum of its proper divisors (1286721).

132521551 is a wasteful number, since it uses less digits than its factorization.

132521551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286720.

The product of its digits is 1500, while the sum is 25.

The square root of 132521551 is about 11511.8005107802. The cubic root of 132521551 is about 509.8340495567.

Adding to 132521551 its reverse (155125231), we get a palindrome (287646782).

The spelling of 132521551 in words is "one hundred thirty-two million, five hundred twenty-one thousand, five hundred fifty-one".