1141318161 has 8 divisors (see below), whose sum is σ = 1690841760. Its totient is φ = 760878756.

The previous prime is 1141318159. The next prime is 1141318183. The reversal of 1141318161 is 1618131411.

1141318161 is a `hidden beast` number, since 11 + 413 + 181 + 61 = 666.

It is not a de Polignac number, because 1141318161 - 2¹ = 1141318159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 42271043 = 1141318161 / (1 + 1 + 4 + 1 + 3 + 1 + 8 + 1 + 6 + 1).

It is not an unprimeable number, because it can be changed into a prime (1141318151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21135495 + ... + 21135548.

It is an arithmetic number, because the mean of its divisors is an integer number (211355220).

Almost surely, 2^1141318161 is an apocalyptic number.

It is an amenable number.

1141318161 is a deficient number, since it is larger than the sum of its proper divisors (549523599).

1141318161 is an equidigital number, since it uses as much as digits as its factorization.

1141318161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42271052 (or 42271046 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 1141318161 is about 33783.4006725196. The cubic root of 1141318161 is about 1045.0464059122.

Adding to 1141318161 its reverse (1618131411), we get a palindrome (2759449572).

The spelling of 1141318161 in words is "one billion, one hundred forty-one million, three hundred eighteen thousand, one hundred sixty-one".