32931013 has 2 divisors, whose sum is σ = 32931014. Its totient is φ = 32931012.

The previous prime is 32931001. The next prime is 32931029. The reversal of 32931013 is 31013923.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25786084 + 7144929 = 5078^2 + 2673^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32931013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32931113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16465506 + 16465507.

It is an arithmetic number, because the mean of its divisors is an integer number (16465507).

Almost surely, 2^32931013 is an apocalyptic number.

It is an amenable number.

32931013 is a deficient number, since it is larger than the sum of its proper divisors (1).

32931013 is an equidigital number, since it uses as much as digits as its factorization.

32931013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 32931013 is about 5738.5549574784. The cubic root of 32931013 is about 320.5297637619.

Adding to 32931013 its reverse (31013923), we get a palindrome (63944936).

The spelling of 32931013 in words is "thirty-two million, nine hundred thirty-one thousand, thirteen".