1143519552 has 448 divisors, whose sum is σ = 4178442240. Its totient is φ = 299261952.

The previous prime is 1143519551. The next prime is 1143519577. The reversal of 1143519552 is 2559153411.

It is a happy number.

1143519552 is a `hidden beast` number, since 11 + 43 + 51 + 9 + 552 = 666.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143519551) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13777303 + ... + 13777385.

It is an arithmetic number, because the mean of its divisors is an integer number (9326880).

Almost surely, 2^1143519552 is an apocalyptic number.

1143519552 is a gapful number since it is divisible by the number (12) 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 1143519552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2089221120).

1143519552 is an abundant number, since it is smaller than the sum of its proper divisors (3034922688).

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

1143519552 is a wasteful number, since it uses less digits than its factorization.

1143519552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195 (or 179 counting only the distinct ones).

The product of its digits is 27000, while the sum is 36.

The square root of 1143519552 is about 33815.9659332689. The cubic root of 1143519552 is about 1045.7178745990.

The spelling of 1143519552 in words is "one billion, one hundred forty-three million, five hundred nineteen thousand, five hundred fifty-two".