1143453144 has 16 divisors (see below), whose sum is σ = 2858632920. Its totient is φ = 381151040.

The previous prime is 1143453109. The next prime is 1143453149. The reversal of 1143453144 is 4413543411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143453149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23821917 + ... + 23821964.

Almost surely, 2^1143453144 is an apocalyptic number.

It is an amenable number.

1143453144 is an abundant number, since it is smaller than the sum of its proper divisors (1715179776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143453144 is a wasteful number, since it uses less digits than its factorization.

1143453144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47643890 (or 47643886 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 1143453144 is about 33814.9840159655. The cubic root of 1143453144 is about 1045.6976314305.

Adding to 1143453144 its reverse (4413543411), we get a palindrome (5556996555).

The spelling of 1143453144 in words is "one billion, one hundred forty-three million, four hundred fifty-three thousand, one hundred forty-four".