32170013 has 2 divisors, whose sum is σ = 32170014. Its totient is φ = 32170012.

The previous prime is 32170009. The next prime is 32170027. The reversal of 32170013 is 31007123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23396569 + 8773444 = 4837^2 + 2962^2 .

It is a cyclic number.

It is not a de Polignac number, because 32170013 - 2² = 32170009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 32169973 and 32170000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32170913) 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 as a sum of consecutive naturals, namely, 16085006 + 16085007.

It is an arithmetic number, because the mean of its divisors is an integer number (16085007).

Almost surely, 2^32170013 is an apocalyptic number.

It is an amenable number.

32170013 is a deficient number, since it is larger than the sum of its proper divisors (1).

32170013 is an equidigital number, since it uses as much as digits as its factorization.

32170013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 32170013 is about 5671.8615110032. The cubic root of 32170013 is about 318.0414651308.

Adding to 32170013 its reverse (31007123), we get a palindrome (63177136).

The spelling of 32170013 in words is "thirty-two million, one hundred seventy thousand, thirteen".