7716133121 has 2 divisors, whose sum is σ = 7716133122. Its totient is φ = 7716133120.

The previous prime is 7716133013. The next prime is 7716133169. The reversal of 7716133121 is 1213316177.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7715162896 + 970225 = 87836^2 + 985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7716133121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (7716133421) 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, 3858066560 + 3858066561.

It is an arithmetic number, because the mean of its divisors is an integer number (3858066561).

Almost surely, 2^7716133121 is an apocalyptic number.

It is an amenable number.

7716133121 is a deficient number, since it is larger than the sum of its proper divisors (1).

7716133121 is an equidigital number, since it uses as much as digits as its factorization.

7716133121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292, while the sum is 32.

The square root of 7716133121 is about 87841.5227611635. The cubic root of 7716133121 is about 1976.0589841574.

Adding to 7716133121 its reverse (1213316177), we get a palindrome (8929449298).

The spelling of 7716133121 in words is "seven billion, seven hundred sixteen million, one hundred thirty-three thousand, one hundred twenty-one".