1142223572 has 12 divisors (see below), whose sum is σ = 2284447200. Its totient is φ = 489524376.

The previous prime is 1142223569. The next prime is 1142223629. The reversal of 1142223572 is 2753222411.

1142223572 is an admirable 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 3 ways as a sum of consecutive naturals, for example, 20396822 + ... + 20396877.

It is an arithmetic number, because the mean of its divisors is an integer number (190370600).

Almost surely, 2^1142223572 is an apocalyptic number.

It is an amenable number.

1142223572 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1142223572 is a wasteful number, since it uses less digits than its factorization.

1142223572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40793710 (or 40793708 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 1142223572 is about 33796.7982507219. The cubic root of 1142223572 is about 1045.3226789816.

Adding to 1142223572 its reverse (2753222411), we get a palindrome (3895445983).

The spelling of 1142223572 in words is "one billion, one hundred forty-two million, two hundred twenty-three thousand, five hundred seventy-two".