7551126157 has 2 divisors, whose sum is σ = 7551126158. Its totient is φ = 7551126156.

The previous prime is 7551126137. The next prime is 7551126161. The reversal of 7551126157 is 7516211557.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6479284036 + 1071842121 = 80494^2 + 32739^2 .

It is an emirp because it is prime and its reverse (7516211557) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7551126157 - 2¹¹ = 7551124109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7551126137) 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, 3775563078 + 3775563079.

It is an arithmetic number, because the mean of its divisors is an integer number (3775563079).

Almost surely, 2^7551126157 is an apocalyptic number.

It is an amenable number.

7551126157 is a deficient number, since it is larger than the sum of its proper divisors (1).

7551126157 is an equidigital number, since it uses as much as digits as its factorization.

7551126157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 73500, while the sum is 40.

The square root of 7551126157 is about 86897.2160486169. The cubic root of 7551126157 is about 1961.8715772917.

The spelling of 7551126157 in words is "seven billion, five hundred fifty-one million, one hundred twenty-six thousand, one hundred fifty-seven".