1143340356 has 12 divisors (see below), whose sum is σ = 2667794192. Its totient is φ = 381113448.

The previous prime is 1143340313. The next prime is 1143340379. The reversal of 1143340356 is 6530433411.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47639170 + ... + 47639193.

Almost surely, 2^1143340356 is an apocalyptic number.

It is an amenable number.

1143340356 is an abundant number, since it is smaller than the sum of its proper divisors (1524453836).

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

1143340356 is a wasteful number, since it uses less digits than its factorization.

1143340356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95278370 (or 95278368 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 1143340356 is about 33813.3162526245. The cubic root of 1143340356 is about 1045.6632484380.

Adding to 1143340356 its reverse (6530433411), we get a palindrome (7673773767).

The spelling of 1143340356 in words is "one billion, one hundred forty-three million, three hundred forty thousand, three hundred fifty-six".