1143885049 has 8 divisors (see below), whose sum is σ = 1158192000. Its totient is φ = 1129610592.

The previous prime is 1143884983. The next prime is 1143885053. The reversal of 1143885049 is 9405883411.

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 1143885049 - 2²¹ = 1141787897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1143884996 and 1143885014.

It is not an unprimeable number, because it can be changed into a prime (1143885079) 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, 67012 + ... + 82330.

It is an arithmetic number, because the mean of its divisors is an integer number (144774000).

Almost surely, 2^1143885049 is an apocalyptic number.

It is an amenable number.

1143885049 is a deficient number, since it is larger than the sum of its proper divisors (14306951).

1143885049 is an equidigital number, since it uses as much as digits as its factorization.

1143885049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16247.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 1143885049 is about 33821.3697091055. The cubic root of 1143885049 is about 1045.8292751231.

The spelling of 1143885049 in words is "one billion, one hundred forty-three million, eight hundred eighty-five thousand, forty-nine".