1143521334 has 32 divisors (see below), whose sum is σ = 2609843040. Its totient is φ = 370871136.

The previous prime is 1143521321. The next prime is 1143521363. The reversal of 1143521334 is 4331253411.

It is a happy number.

1143521334 is a `hidden beast` number, since 11 + 435 + 213 + 3 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1143521298 and 1143521307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284169 + ... + 288164.

It is an arithmetic number, because the mean of its divisors is an integer number (81557595).

Almost surely, 2^1143521334 is an apocalyptic number.

1143521334 is an abundant number, since it is smaller than the sum of its proper divisors (1466321706).

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

1143521334 is a wasteful number, since it uses less digits than its factorization.

1143521334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572381 (or 572375 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 1143521334 is about 33815.9922817592. The cubic root of 1143521334 is about 1045.7184177957.

Adding to 1143521334 its reverse (4331253411), we get a palindrome (5474774745).

The spelling of 1143521334 in words is "one billion, one hundred forty-three million, five hundred twenty-one thousand, three hundred thirty-four".