1141561233 has 12 divisors (see below), whose sum is σ = 1649687988. Its totient is φ = 760687200.

The previous prime is 1141561199. The next prime is 1141561241. The reversal of 1141561233 is 3321651411.

It is a happy number.

1141561233 is a `hidden beast` number, since 1 + 1 + 4 + 15 + 612 + 33 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 824436369 + 317124864 = 28713^2 + 17808^2 .

It is not a de Polignac number, because 1141561233 - 2¹⁶ = 1141495697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1141561197 and 1141561206.

It is not an unprimeable number, because it can be changed into a prime (1141561243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8218 + ... + 48483.

It is an arithmetic number, because the mean of its divisors is an integer number (137473999).

Almost surely, 2^1141561233 is an apocalyptic number.

It is an amenable number.

1141561233 is a deficient number, since it is larger than the sum of its proper divisors (508126755).

1141561233 is a wasteful number, since it uses less digits than its factorization.

1141561233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58944 (or 58941 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 1141561233 is about 33786.9979873915. The cubic root of 1141561233 is about 1045.1205901602.

The spelling of 1141561233 in words is "one billion, one hundred forty-one million, five hundred sixty-one thousand, two hundred thirty-three".