32320131 has 4 divisors (see below), whose sum is σ = 43093512. Its totient is φ = 21546752.

The previous prime is 32320087. The next prime is 32320139. The reversal of 32320131 is 13102323.

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 32320131 - 2⁷ = 32320003 is a prime.

It is a super-2 number, since 2×32320131² = 2089181735714322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 32320131.

It is not an unprimeable number, because it can be changed into a prime (32320139) 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 3 ways as a sum of consecutive naturals, for example, 5386686 + ... + 5386691.

It is an arithmetic number, because the mean of its divisors is an integer number (10773378).

Almost surely, 2^32320131 is an apocalyptic number.

32320131 is a deficient number, since it is larger than the sum of its proper divisors (10773381).

32320131 is a wasteful number, since it uses less digits than its factorization.

32320131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10773380.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 32320131 is about 5685.0796828189. The cubic root of 32320131 is about 318.5354000349.

Adding to 32320131 its reverse (13102323), we get a palindrome (45422454).

The spelling of 32320131 in words is "thirty-two million, three hundred twenty thousand, one hundred thirty-one".