1171142671 has 2 divisors, whose sum is σ = 1171142672. Its totient is φ = 1171142670.

The previous prime is 1171142659. The next prime is 1171142677. The reversal of 1171142671 is 1762411711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1171142671 - 2⁵ = 1171142639 is a prime.

It is a super-3 number, since 3×1171142671³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1171142677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 585571335 + 585571336.

It is an arithmetic number, because the mean of its divisors is an integer number (585571336).

Almost surely, 2^1171142671 is an apocalyptic number.

1171142671 is a deficient number, since it is larger than the sum of its proper divisors (1).

1171142671 is an equidigital number, since it uses as much as digits as its factorization.

1171142671 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2352, while the sum is 31.

The square root of 1171142671 is about 34221.9618227827. The cubic root of 1171142671 is about 1054.0711697925.

The spelling of 1171142671 in words is "one billion, one hundred seventy-one million, one hundred forty-two thousand, six hundred seventy-one".