32531013 has 24 divisors (see below), whose sum is σ = 50333400. Its totient is φ = 20173824.

The previous prime is 32530991. The next prime is 32531027. The reversal of 32531013 is 31013523.

It can be written as a sum of positive squares in 4 ways, for example, as 1695204 + 30835809 = 1302^2 + 5553^2 .

It is not a de Polignac number, because 32531013 - 2¹⁰ = 32529989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32531033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12423 + ... + 14811.

It is an arithmetic number, because the mean of its divisors is an integer number (2097225).

Almost surely, 2^32531013 is an apocalyptic number.

It is an amenable number.

32531013 is a deficient number, since it is larger than the sum of its proper divisors (17802387).

32531013 is a wasteful number, since it uses less digits than its factorization.

32531013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501 (or 2498 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 32531013 is about 5703.5964969482. The cubic root of 32531013 is about 319.2266906752.

Adding to 32531013 its reverse (31013523), we get a palindrome (63544536).

The spelling of 32531013 in words is "thirty-two million, five hundred thirty-one thousand, thirteen".