13751513 has 2 divisors, whose sum is σ = 13751514. Its totient is φ = 13751512.

The previous prime is 13751509. The next prime is 13751519. The reversal of 13751513 is 31515731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9412624 + 4338889 = 3068^2 + 2083^2 .

It is a cyclic number.

It is not a de Polignac number, because 13751513 - 2² = 13751509 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13751519) 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, 6875756 + 6875757.

It is an arithmetic number, because the mean of its divisors is an integer number (6875757).

Almost surely, 2^13751513 is an apocalyptic number.

It is an amenable number.

13751513 is a deficient number, since it is larger than the sum of its proper divisors (1).

13751513 is an equidigital number, since it uses as much as digits as its factorization.

13751513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1575, while the sum is 26.

The square root of 13751513 is about 3708.3032508143. The cubic root of 13751513 is about 239.5797797045.

The spelling of 13751513 in words is "thirteen million, seven hundred fifty-one thousand, five hundred thirteen".