1143413161 has 8 divisors (see below), whose sum is σ = 1258804800. Its totient is φ = 1029929040.

The previous prime is 1143413153. The next prime is 1143413203. The reversal of 1143413161 is 1613143411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1143413161 - 2³ = 1143413153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143413111) 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 7 ways as a sum of consecutive naturals, for example, 475621 + ... + 478018.

It is an arithmetic number, because the mean of its divisors is an integer number (157350600).

Almost surely, 2^1143413161 is an apocalyptic number.

1143413161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1143413161 is a deficient number, since it is larger than the sum of its proper divisors (115391639).

1143413161 is a wasteful number, since it uses less digits than its factorization.

1143413161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953759.

The product of its digits is 864, while the sum is 25.

The square root of 1143413161 is about 33814.3928083886. The cubic root of 1143413161 is about 1045.6854430238.

Adding to 1143413161 its reverse (1613143411), we get a palindrome (2756556572).

The spelling of 1143413161 in words is "one billion, one hundred forty-three million, four hundred thirteen thousand, one hundred sixty-one".