6513901 has 2 divisors, whose sum is σ = 6513902. Its totient is φ = 6513900.

The previous prime is 6513889. The next prime is 6513911. The reversal of 6513901 is 1093156.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6380676 + 133225 = 2526^2 + 365^2 .

It is a cyclic number.

It is not a de Polignac number, because 6513901 - 2⁵ = 6513869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6513911) 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 as a sum of consecutive naturals, namely, 3256950 + 3256951.

It is an arithmetic number, because the mean of its divisors is an integer number (3256951).

Almost surely, 2^6513901 is an apocalyptic number.

It is an amenable number.

6513901 is a deficient number, since it is larger than the sum of its proper divisors (1).

6513901 is an equidigital number, since it uses as much as digits as its factorization.

6513901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 6513901 is about 2552.2345111686. The cubic root of 6513901 is about 186.7585032092.

The spelling of 6513901 in words is "six million, five hundred thirteen thousand, nine hundred one".