32230813 has 2 divisors, whose sum is σ = 32230814. Its totient is φ = 32230812.

The previous prime is 32230801. The next prime is 32230829. The reversal of 32230813 is 31803223.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20548089 + 11682724 = 4533^2 + 3418^2 .

It is an emirp because it is prime and its reverse (31803223) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32230813 is a prime.

It is a super-3 number, since 3×32230813³ (a number of 24 digits) contains 333 as substring.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32230853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16115406 + 16115407.

It is an arithmetic number, because the mean of its divisors is an integer number (16115407).

Almost surely, 2^32230813 is an apocalyptic number.

It is an amenable number.

32230813 is a deficient number, since it is larger than the sum of its proper divisors (1).

32230813 is an equidigital number, since it uses as much as digits as its factorization.

32230813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 32230813 is about 5677.2187733079. The cubic root of 32230813 is about 318.2417007960.

The spelling of 32230813 in words is "thirty-two million, two hundred thirty thousand, eight hundred thirteen".