1143471842 has 6 divisors (see below), whose sum is σ = 1715279499. Its totient is φ = 571712010.

The previous prime is 1143471787. The next prime is 1143471863. The reversal of 1143471842 is 2481743411.

It can be written as a sum of positive squares in only one way, i.e., 571735921 + 571735921 = 23911^2 + 23911^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=23911.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 35867 + ... + 59777.

Almost surely, 2^1143471842 is an apocalyptic number.

1143471842 is a deficient number, since it is larger than the sum of its proper divisors (571807657).

1143471842 is an frugal number, since it uses more digits than its factorization.

1143471842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47824 (or 23913 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 1143471842 is about 33815.2604899031. The cubic root of 1143471842 is about 1045.7033312261.

The spelling of 1143471842 in words is "one billion, one hundred forty-three million, four hundred seventy-one thousand, eight hundred forty-two".