1143484649 has 4 divisors (see below), whose sum is σ = 1143795840. Its totient is φ = 1143173460.

The previous prime is 1143484637. The next prime is 1143484669. The reversal of 1143484649 is 9464843411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9464843411 = 149 ⋅63522439.

It is a cyclic number.

It is not a de Polignac number, because 1143484649 - 2⁴ = 1143484633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143484669) 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 3 ways as a sum of consecutive naturals, for example, 150017 + ... + 157454.

It is an arithmetic number, because the mean of its divisors is an integer number (285948960).

Almost surely, 2^1143484649 is an apocalyptic number.

It is an amenable number.

1143484649 is a deficient number, since it is larger than the sum of its proper divisors (311191).

1143484649 is an equidigital number, since it uses as much as digits as its factorization.

1143484649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311190.

The product of its digits is 331776, while the sum is 44.

The square root of 1143484649 is about 33815.4498565375. The cubic root of 1143484649 is about 1045.7072352058.

The spelling of 1143484649 in words is "one billion, one hundred forty-three million, four hundred eighty-four thousand, six hundred forty-nine".