1153222132 has 18 divisors (see below), whose sum is σ = 2143838102. Its totient is φ = 542692224.

The previous prime is 1153222123. The next prime is 1153222151. The reversal of 1153222132 is 2312223511.

It can be written as a sum of positive squares in 3 ways, for example, as 644448996 + 508773136 = 25386^2 + 22556^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 497643 + ... + 499954.

Almost surely, 2^1153222132 is an apocalyptic number.

It is an amenable number.

1153222132 is a deficient number, since it is larger than the sum of its proper divisors (990615970).

1153222132 is a wasteful number, since it uses less digits than its factorization.

1153222132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997635 (or 997616 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 1153222132 is about 33959.1244292311. The cubic root of 1153222132 is about 1048.6671317533.

Adding to 1153222132 its reverse (2312223511), we get a palindrome (3465445643).

The spelling of 1153222132 in words is "one billion, one hundred fifty-three million, two hundred twenty-two thousand, one hundred thirty-two".