32215013 has 4 divisors (see below), whose sum is σ = 33910560. Its totient is φ = 30519468.

The previous prime is 32214991. The next prime is 32215031. The reversal of 32215013 is 31051223.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31051223 = 7 ⋅4435889.

It is a cyclic number.

It is not a de Polignac number, because 32215013 - 2⁸ = 32214757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32214982 and 32215000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32215093) 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 in 3 ways as a sum of consecutive naturals, for example, 847745 + ... + 847782.

It is an arithmetic number, because the mean of its divisors is an integer number (8477640).

Almost surely, 2^32215013 is an apocalyptic number.

It is an amenable number.

32215013 is a deficient number, since it is larger than the sum of its proper divisors (1695547).

32215013 is a wasteful number, since it uses less digits than its factorization.

32215013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695546.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 32215013 is about 5675.8270762947. The cubic root of 32215013 is about 318.1896901033.

Adding to 32215013 its reverse (31051223), we get a palindrome (63266236).

The spelling of 32215013 in words is "thirty-two million, two hundred fifteen thousand, thirteen".