1143948120 has 192 divisors, whose sum is σ = 4012973280. Its totient is φ = 260112384.

The previous prime is 1143948107. The next prime is 1143948149. The reversal of 1143948120 is 218493411.

It is a happy number.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 1510782 + ... + 1511538.

Almost surely, 2^1143948120 is an apocalyptic number.

1143948120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143948120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2006486640).

1143948120 is an abundant number, since it is smaller than the sum of its proper divisors (2869025160).

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

1143948120 is a wasteful number, since it uses less digits than its factorization.

1143948120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042 (or 1031 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1143948120 is about 33822.3021097027. The cubic root of 1143948120 is about 1045.8484962520.

The spelling of 1143948120 in words is "one billion, one hundred forty-three million, nine hundred forty-eight thousand, one hundred twenty".