132640521 has 8 divisors (see below), whose sum is σ = 190458240. Its totient is φ = 81624912.

The previous prime is 132640499. The next prime is 132640531. The reversal of 132640521 is 125046231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 132640521 - 2¹⁰ = 132639497 is a prime.

It is a super-2 number, since 2×132640521² = 35187015622302882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 132640491 and 132640500.

It is not an unprimeable number, because it can be changed into a prime (132640531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1700481 + ... + 1700558.

It is an arithmetic number, because the mean of its divisors is an integer number (23807280).

Almost surely, 2^132640521 is an apocalyptic number.

It is an amenable number.

132640521 is a deficient number, since it is larger than the sum of its proper divisors (57817719).

132640521 is a wasteful number, since it uses less digits than its factorization.

132640521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401055.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 132640521 is about 11516.9666579356. The cubic root of 132640521 is about 509.9865701961.

Adding to 132640521 its reverse (125046231), we get a palindrome (257686752).

The spelling of 132640521 in words is "one hundred thirty-two million, six hundred forty thousand, five hundred twenty-one".