1152223236 has 54 divisors (see below), whose sum is σ = 2976057630. Its totient is φ = 375876672.

The previous prime is 1152223223. The next prime is 1152223271. The reversal of 1152223236 is 6323222511.

It is a happy number.

1152223236 is a `hidden beast` number, since 115 + 222 + 323 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 795240000 + 356983236 = 28200^2 + 18894^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 72280 + ... + 86768.

Almost surely, 2^1152223236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1152223236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1488028815).

1152223236 is an abundant number, since it is smaller than the sum of its proper divisors (1823834394).

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

1152223236 is a wasteful number, since it uses less digits than its factorization.

1152223236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14593 (or 14541 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 1152223236 is about 33944.4139145162. The cubic root of 1152223236 is about 1048.3642667159.

Adding to 1152223236 its reverse (6323222511), we get a palindrome (7475445747).

The spelling of 1152223236 in words is "one billion, one hundred fifty-two million, two hundred twenty-three thousand, two hundred thirty-six".