1171258881 has 8 divisors (see below), whose sum is σ = 1681807680. Its totient is φ = 720774672.

The previous prime is 1171258871. The next prime is 1171258889. The reversal of 1171258881 is 1888521711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1171258881 - 2⁹ = 1171258369 is a prime.

It is a super-2 number, since 2×1171258881² = 2743694732642744322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1171258889) 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 in 7 ways as a sum of consecutive naturals, for example, 15016101 + ... + 15016178.

It is an arithmetic number, because the mean of its divisors is an integer number (210225960).

Almost surely, 2^1171258881 is an apocalyptic number.

It is an amenable number.

1171258881 is a deficient number, since it is larger than the sum of its proper divisors (510548799).

1171258881 is a wasteful number, since it uses less digits than its factorization.

1171258881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30032295.

The product of its digits is 35840, while the sum is 42.

The square root of 1171258881 is about 34223.6596669614. The cubic root of 1171258881 is about 1054.1060330539.

The spelling of 1171258881 in words is "one billion, one hundred seventy-one million, two hundred fifty-eight thousand, eight hundred eighty-one".