1143065436 has 12 divisors (see below), whose sum is σ = 2667152712. Its totient is φ = 381021808.

The previous prime is 1143065419. The next prime is 1143065447. The reversal of 1143065436 is 6345603411.

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

It is a junction number, because it is equal to n+sod(n) for n = 1143065397 and 1143065406.

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 3 ways as a sum of consecutive naturals, for example, 47627715 + ... + 47627738.

It is an arithmetic number, because the mean of its divisors is an integer number (222262726).

Almost surely, 2^1143065436 is an apocalyptic number.

It is an amenable number.

1143065436 is an abundant number, since it is smaller than the sum of its proper divisors (1524087276).

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

1143065436 is a wasteful number, since it uses less digits than its factorization.

1143065436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95255460 (or 95255458 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 1143065436 is about 33809.2507459127. The cubic root of 1143065436 is about 1045.5794306482.

Adding to 1143065436 its reverse (6345603411), we get a palindrome (7488668847).

The spelling of 1143065436 in words is "one billion, one hundred forty-three million, sixty-five thousand, four hundred thirty-six".