9514138681 has 2 divisors, whose sum is σ = 9514138682. Its totient is φ = 9514138680.

The previous prime is 9514138631. The next prime is 9514138709. The reversal of 9514138681 is 1868314159.

9514138681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7296576400 + 2217562281 = 85420^2 + 47091^2 .

It is an emirp because it is prime and its reverse (1868314159) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9514138681 - 2¹⁷ = 9514007609 is a prime.

It is a super-2 number, since 2×9514138681² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9514138631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4757069340 + 4757069341.

It is an arithmetic number, because the mean of its divisors is an integer number (4757069341).

Almost surely, 2^9514138681 is an apocalyptic number.

It is an amenable number.

9514138681 is a deficient number, since it is larger than the sum of its proper divisors (1).

9514138681 is an equidigital number, since it uses as much as digits as its factorization.

9514138681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 207360, while the sum is 46.

The square root of 9514138681 is about 97540.4463850766. The cubic root of 9514138681 is about 2118.9619548014.

The spelling of 9514138681 in words is "nine billion, five hundred fourteen million, one hundred thirty-eight thousand, six hundred eighty-one".