32132561 has 4 divisors (see below), whose sum is σ = 32916324. Its totient is φ = 31348800.

The previous prime is 32132509. The next prime is 32132563. The reversal of 32132561 is 16523123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16523123 = 41 ⋅403003.

It can be written as a sum of positive squares in 2 ways, for example, as 10042561 + 22090000 = 3169^2 + 4700^2 .

It is a cyclic number.

It is not a de Polignac number, because 32132561 - 2¹⁴ = 32116177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32132563) 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, 391820 + ... + 391901.

It is an arithmetic number, because the mean of its divisors is an integer number (8229081).

Almost surely, 2^32132561 is an apocalyptic number.

It is an amenable number.

32132561 is a deficient number, since it is larger than the sum of its proper divisors (783763).

32132561 is an equidigital number, since it uses as much as digits as its factorization.

32132561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783762.

The product of its digits is 1080, while the sum is 23.

The square root of 32132561 is about 5668.5589879616. The cubic root of 32132561 is about 317.9179969984.

Adding to 32132561 its reverse (16523123), we get a palindrome (48655684).

The spelling of 32132561 in words is "thirty-two million, one hundred thirty-two thousand, five hundred sixty-one".