2321513 has 4 divisors (see below), whose sum is σ = 2325120. Its totient is φ = 2317908.

The previous prime is 2321509. The next prime is 2321519. The reversal of 2321513 is 3151232.

2321513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 2321513 - 2² = 2321509 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 2321491 and 2321500.

It is not an unprimeable number, because it can be changed into a prime (2321519) 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 3 ways as a sum of consecutive naturals, for example, 545 + ... + 2222.

It is an arithmetic number, because the mean of its divisors is an integer number (581280).

2^2321513 is an apocalyptic number.

It is an amenable number.

2321513 is a deficient number, since it is larger than the sum of its proper divisors (3607).

2321513 is an equidigital number, since it uses as much as digits as its factorization.

2321513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3606.

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

The square root of 2321513 is about 1523.6512068055. The cubic root of 2321513 is about 132.4108906014.

Adding to 2321513 its reverse (3151232), we get a palindrome (5472745).

The spelling of 2321513 in words is "two million, three hundred twenty-one thousand, five hundred thirteen".