1125179171 has 2 divisors, whose sum is σ = 1125179172. Its totient is φ = 1125179170.

The previous prime is 1125179117. The next prime is 1125179191. The reversal of 1125179171 is 1719715211.

Together with previous prime (1125179117) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1125179171 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1125179101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562589585 + 562589586.

It is an arithmetic number, because the mean of its divisors is an integer number (562589586).

Almost surely, 2^1125179171 is an apocalyptic number.

1125179171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125179171 is an equidigital number, since it uses as much as digits as its factorization.

1125179171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4410, while the sum is 35.

The square root of 1125179171 is about 33543.6904797311. The cubic root of 1125179171 is about 1040.0971220319.

The spelling of 1125179171 in words is "one billion, one hundred twenty-five million, one hundred seventy-nine thousand, one hundred seventy-one".