2104513 has 4 divisors (see below), whose sum is σ = 2108160. Its totient is φ = 2100868.

The previous prime is 2104507. The next prime is 2104541. The reversal of 2104513 is 3154012.

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 a de Polignac number, because none of the positive numbers 2^k-2104513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2104013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745 + ... + 2182.

It is an arithmetic number, because the mean of its divisors is an integer number (527040).

2^2104513 is an apocalyptic number.

It is an amenable number.

2104513 is a deficient number, since it is larger than the sum of its proper divisors (3647).

2104513 is an equidigital number, since it uses as much as digits as its factorization.

2104513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3646.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2104513 is about 1450.6939718631. The cubic root of 2104513 is about 128.1495850502.

Adding to 2104513 its reverse (3154012), we get a palindrome (5258525).

The spelling of 2104513 in words is "two million, one hundred four thousand, five hundred thirteen".