32130665 has 8 divisors (see below), whose sum is σ = 44064960. Its totient is φ = 22032432.

The previous prime is 32130661. The next prime is 32130671. The reversal of 32130665 is 56603123.

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

It is a cyclic number.

It is not a de Polignac number, because 32130665 - 2² = 32130661 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (32130661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458975 + ... + 459044.

It is an arithmetic number, because the mean of its divisors is an integer number (5508120).

Almost surely, 2^32130665 is an apocalyptic number.

32130665 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

32130665 is a deficient number, since it is larger than the sum of its proper divisors (11934295).

32130665 is an equidigital number, since it uses as much as digits as its factorization.

32130665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918031.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 32130665 is about 5668.3917472243. The cubic root of 32130665 is about 317.9117438981.

Adding to 32130665 its reverse (56603123), we get a palindrome (88733788).

The spelling of 32130665 in words is "thirty-two million, one hundred thirty thousand, six hundred sixty-five".