6401513 has 4 divisors (see below), whose sum is σ = 6412800. Its totient is φ = 6390228.

The previous prime is 6401509. The next prime is 6401533. The reversal of 6401513 is 3151046.

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 6401513 - 2² = 6401509 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6401533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4745 + ... + 5942.

It is an arithmetic number, because the mean of its divisors is an integer number (1603200).

Almost surely, 2^6401513 is an apocalyptic number.

It is an amenable number.

6401513 is a deficient number, since it is larger than the sum of its proper divisors (11287).

6401513 is a wasteful number, since it uses less digits than its factorization.

6401513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11286.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 6401513 is about 2530.1211433447. The cubic root of 6401513 is about 185.6781828665.

Adding to 6401513 its reverse (3151046), we get a palindrome (9552559).

The spelling of 6401513 in words is "six million, four hundred one thousand, five hundred thirteen".