1181019308149 has 16 divisors (see below), whose sum is σ = 1189616750784. Its totient is φ = 1172461248000.

The previous prime is 1181019308123. The next prime is 1181019308167. The reversal of 1181019308149 is 9418039101811.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1181019308149 - 2¹⁷ = 1181019177077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1181019308099 and 1181019308108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1181019302149) 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, 87794874 + ... + 87808324.

It is an arithmetic number, because the mean of its divisors is an integer number (74351046924).

Almost surely, 2^{1181019308149} is an apocalyptic number.

It is an amenable number.

1181019308149 is a deficient number, since it is larger than the sum of its proper divisors (8597442635).

1181019308149 is a wasteful number, since it uses less digits than its factorization.

1181019308149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14868.

The product of its (nonzero) digits is 62208, while the sum is 46.

The spelling of 1181019308149 in words is "one trillion, one hundred eighty-one billion, nineteen million, three hundred eight thousand, one hundred forty-nine".