1143365049 has 12 divisors (see below), whose sum is σ = 1708476900. Its totient is φ = 735958944.

The previous prime is 1143365021. The next prime is 1143365053. The reversal of 1143365049 is 9405633411.

1143365049 is a `hidden beast` number, since 1 + 143 + 3 + 6 + 504 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 237776400 + 905588649 = 15420^2 + 30093^2 .

It is not a de Polignac number, because 1143365049 - 2¹³ = 1143356857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143365149) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2190094 + ... + 2190615.

It is an arithmetic number, because the mean of its divisors is an integer number (142373075).

Almost surely, 2^1143365049 is an apocalyptic number.

It is an amenable number.

1143365049 is a deficient number, since it is larger than the sum of its proper divisors (565111851).

1143365049 is a wasteful number, since it uses less digits than its factorization.

1143365049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4380744 (or 4380741 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 1143365049 is about 33813.6813878643. The cubic root of 1143365049 is about 1045.6707761984.

The spelling of 1143365049 in words is "one billion, one hundred forty-three million, three hundred sixty-five thousand, forty-nine".