1143385924 has 12 divisors (see below), whose sum is σ = 2001163500. Its totient is φ = 571624928.

The previous prime is 1143385897. The next prime is 1143385963. The reversal of 1143385924 is 4295833411.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1000583424 + 142802500 = 31632^2 + 11950^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51162 + ... + 70030.

It is an arithmetic number, because the mean of its divisors is an integer number (166763625).

Almost surely, 2^1143385924 is an apocalyptic number.

It is an amenable number.

1143385924 is a deficient number, since it is larger than the sum of its proper divisors (857777576).

1143385924 is a wasteful number, since it uses less digits than its factorization.

1143385924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34022 (or 34020 counting only the distinct ones).

The product of its digits is 103680, while the sum is 40.

The square root of 1143385924 is about 33813.9900632859. The cubic root of 1143385924 is about 1045.6771399416.

The spelling of 1143385924 in words is "one billion, one hundred forty-three million, three hundred eighty-five thousand, nine hundred twenty-four".