6513992101 has 2 divisors, whose sum is σ = 6513992102. Its totient is φ = 6513992100.

The previous prime is 6513992059. The next prime is 6513992113. The reversal of 6513992101 is 1012993156.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5963855076 + 550137025 = 77226^2 + 23455^2 .

It is a cyclic number.

It is not a de Polignac number, because 6513992101 - 2¹¹ = 6513990053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6513992141) 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, 3256996050 + 3256996051.

It is an arithmetic number, because the mean of its divisors is an integer number (3256996051).

Almost surely, 2^6513992101 is an apocalyptic number.

It is an amenable number.

6513992101 is a deficient number, since it is larger than the sum of its proper divisors (1).

6513992101 is an equidigital number, since it uses as much as digits as its factorization.

6513992101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 37.

The square root of 6513992101 is about 80709.3061610617. The cubic root of 6513992101 is about 1867.5937385020.

The spelling of 6513992101 in words is "six billion, five hundred thirteen million, nine hundred ninety-two thousand, one hundred one".