2681513 has 4 divisors (see below), whose sum is σ = 2698128. Its totient is φ = 2664900.

The previous prime is 2681507. The next prime is 2681521. The reversal of 2681513 is 3151862.

2681513 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 a de Polignac number, because none of the positive numbers 2^k-2681513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2681533) 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, 8063 + ... + 8388.

It is an arithmetic number, because the mean of its divisors is an integer number (674532).

2^2681513 is an apocalyptic number.

It is an amenable number.

2681513 is a deficient number, since it is larger than the sum of its proper divisors (16615).

2681513 is a wasteful number, since it uses less digits than its factorization.

2681513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16614.

The product of its digits is 1440, while the sum is 26.

The square root of 2681513 is about 1637.5325950954. The cubic root of 2681513 is about 138.9291255747.

The spelling of 2681513 in words is "two million, six hundred eighty-one thousand, five hundred thirteen".