1143425520 has 60 divisors (see below), whose sum is σ = 3840006456. Its totient is φ = 304913280.

The previous prime is 1143425489. The next prime is 1143425527. The reversal of 1143425520 is 255243411.

1143425520 is a `hidden beast` number, since 114 + 3 + 4 + 25 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143425527) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 793326 + ... + 794765.

Almost surely, 2^1143425520 is an apocalyptic number.

1143425520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143425520 is an abundant number, since it is smaller than the sum of its proper divisors (2696580936).

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

1143425520 is a wasteful number, since it uses less digits than its factorization.

1143425520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1588110 (or 1588101 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1143425520 is about 33814.5755555204. The cubic root of 1143425520 is about 1045.6892105683.

Adding to 1143425520 its reverse (255243411), we get a palindrome (1398668931).

The spelling of 1143425520 in words is "one billion, one hundred forty-three million, four hundred twenty-five thousand, five hundred twenty".