1153222144 has 20 divisors (see below), whose sum is σ = 2304192924. Its totient is φ = 576610816.

The previous prime is 1153222123. The next prime is 1153222151. The reversal of 1153222144 is 4412223511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1125682 + ... + 1126705.

Almost surely, 2^1153222144 is an apocalyptic number.

It is an amenable number.

1153222144 is a deficient number, since it is larger than the sum of its proper divisors (1150970780).

1153222144 is an frugal number, since it uses more digits than its factorization.

1153222144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252405 (or 2252389 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 1153222144 is about 33959.1246059141. The cubic root of 1153222144 is about 1048.6671353906.

Adding to 1153222144 its reverse (4412223511), we get a palindrome (5565445655).

The spelling of 1153222144 in words is "one billion, one hundred fifty-three million, two hundred twenty-two thousand, one hundred forty-four".