132313521 has 4 divisors (see below), whose sum is σ = 176418032. Its totient is φ = 88209012.

The previous prime is 132313513. The next prime is 132313547. The reversal of 132313521 is 125313231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 132313521 - 2³ = 132313513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132313501) 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, 22052251 + ... + 22052256.

It is an arithmetic number, because the mean of its divisors is an integer number (44104508).

Almost surely, 2^132313521 is an apocalyptic number.

It is an amenable number.

132313521 is a deficient number, since it is larger than the sum of its proper divisors (44104511).

132313521 is an equidigital number, since it uses as much as digits as its factorization.

132313521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44104510.

The product of its digits is 540, while the sum is 21.

The square root of 132313521 is about 11502.7614510603. The cubic root of 132313521 is about 509.5671336666.

Adding to 132313521 its reverse (125313231), we get a palindrome (257626752).

The spelling of 132313521 in words is "one hundred thirty-two million, three hundred thirteen thousand, five hundred twenty-one".