7551126161 has 2 divisors, whose sum is σ = 7551126162. Its totient is φ = 7551126160.

The previous prime is 7551126157. The next prime is 7551126199. The reversal of 7551126161 is 1616211557.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6852528400 + 698597761 = 82780^2 + 26431^2 .

It is a cyclic number.

It is not a de Polignac number, because 7551126161 - 2² = 7551126157 is a prime.

It is not a weakly prime, because it can be changed into another prime (7551126061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3775563080 + 3775563081.

It is an arithmetic number, because the mean of its divisors is an integer number (3775563081).

Almost surely, 2^7551126161 is an apocalyptic number.

It is an amenable number.

7551126161 is a deficient number, since it is larger than the sum of its proper divisors (1).

7551126161 is an equidigital number, since it uses as much as digits as its factorization.

7551126161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 35.

The square root of 7551126161 is about 86897.2160716326. The cubic root of 7551126161 is about 1961.8715776381.

The spelling of 7551126161 in words is "seven billion, five hundred fifty-one million, one hundred twenty-six thousand, one hundred sixty-one".