1149108587181 has 16 divisors (see below), whose sum is σ = 1713808488000. Its totient is φ = 760930963344.

The previous prime is 1149108587161. The next prime is 1149108587227. The reversal of 1149108587181 is 1817858019411.

It is a happy number.

1149108587181 is a `hidden beast` number, since 1 + 1 + 49 + 1 + 0 + 8 + 587 + 18 + 1 = 666.

It is not a de Polignac number, because 1149108587181 - 2⁵ = 1149108587149 is a prime.

It is a super-2 number, since 2×1149108587181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149108587161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142813351 + ... + 142821396.

It is an arithmetic number, because the mean of its divisors is an integer number (107113030500).

Almost surely, 2^{1149108587181} is an apocalyptic number.

It is an amenable number.

1149108587181 is a deficient number, since it is larger than the sum of its proper divisors (564699900819).

1149108587181 is a wasteful number, since it uses less digits than its factorization.

1149108587181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285634905 (or 285634899 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 54.

The spelling of 1149108587181 in words is "one trillion, one hundred forty-nine billion, one hundred eight million, five hundred eighty-seven thousand, one hundred eighty-one".