1143854450 has 18 divisors (see below), whose sum is σ = 2128014189. Its totient is φ = 457446120.

The previous prime is 1143854381. The next prime is 1143854477. The reversal of 1143854450 is 544583411.

It can be written as a sum of positive squares in 2 ways, for example, as 1120977361 + 22877089 = 33481^2 + 4783^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=23915.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1143854450.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 236759 + ... + 241541.

Almost surely, 2^1143854450 is an apocalyptic number.

1143854450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1143854450 is a deficient number, since it is larger than the sum of its proper divisors (984159739).

1143854450 is an frugal number, since it uses more digits than its factorization.

1143854450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9578 (or 4790 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 1143854450 is about 33820.9173441526. The cubic root of 1143854450 is about 1045.8199497061.

The spelling of 1143854450 in words is "one billion, one hundred forty-three million, eight hundred fifty-four thousand, four hundred fifty".