1166175487 has 2 divisors, whose sum is σ = 1166175488. Its totient is φ = 1166175486.

The previous prime is 1166175379. The next prime is 1166175541. The reversal of 1166175487 is 7845716611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1166175487 - 2⁷ = 1166175359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1166170487) 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, 583087743 + 583087744.

It is an arithmetic number, because the mean of its divisors is an integer number (583087744).

Almost surely, 2^1166175487 is an apocalyptic number.

1166175487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1166175487 is an equidigital number, since it uses as much as digits as its factorization.

1166175487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 46.

The square root of 1166175487 is about 34149.3116621697. The cubic root of 1166175487 is about 1052.5788423287.

The spelling of 1166175487 in words is "one billion, one hundred sixty-six million, one hundred seventy-five thousand, four hundred eighty-seven".