1143413505 has 24 divisors (see below), whose sum is σ = 2134372968. Its totient is φ = 562910976.

The previous prime is 1143413503. The next prime is 1143413519. The reversal of 1143413505 is 5053143411.

It is a happy number.

1143413505 is a `hidden beast` number, since 1 + 143 + 4 + 13 + 505 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 45684081 + 1097729424 = 6759^2 + 33132^2 .

It is not a de Polignac number, because 1143413505 - 2¹ = 1143413503 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143413501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 976692 + ... + 977861.

It is an arithmetic number, because the mean of its divisors is an integer number (88932207).

Almost surely, 2^1143413505 is an apocalyptic number.

1143413505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1143413505 is a deficient number, since it is larger than the sum of its proper divisors (990959463).

1143413505 is a wasteful number, since it uses less digits than its factorization.

1143413505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1954577 (or 1954574 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1143413505 is about 33814.3978949796. The cubic root of 1143413505 is about 1045.6855478899.

Adding to 1143413505 its reverse (5053143411), we get a palindrome (6196556916).

The spelling of 1143413505 in words is "one billion, one hundred forty-three million, four hundred thirteen thousand, five hundred five".