1143407161 has 8 divisors (see below), whose sum is σ = 1231977600. Its totient is φ = 1054924752.

The previous prime is 1143407149. The next prime is 1143407173. The reversal of 1143407161 is 1617043411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1143407149) and next prime (1143407173).

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 1143407161 - 2⁵ = 1143407129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143407761) 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 7 ways as a sum of consecutive naturals, for example, 6336 + ... + 48238.

It is an arithmetic number, because the mean of its divisors is an integer number (153997200).

Almost surely, 2^1143407161 is an apocalyptic number.

It is an amenable number.

1143407161 is a deficient number, since it is larger than the sum of its proper divisors (88570439).

1143407161 is a wasteful number, since it uses less digits than its factorization.

1143407161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44015.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1143407161 is about 33814.3040886546. The cubic root of 1143407161 is about 1045.6836139609.

The spelling of 1143407161 in words is "one billion, one hundred forty-three million, four hundred seven thousand, one hundred sixty-one".