1155233120 has 48 divisors (see below), whose sum is σ = 2731796928. Its totient is φ = 461660160.

The previous prime is 1155233111. The next prime is 1155233137. The reversal of 1155233120 is 213325511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209600 + ... + 215040.

It is an arithmetic number, because the mean of its divisors is an integer number (56912436).

Almost surely, 2^1155233120 is an apocalyptic number.

1155233120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1155233120 is an abundant number, since it is smaller than the sum of its proper divisors (1576563808).

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

1155233120 is a wasteful number, since it uses less digits than its factorization.

1155233120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6783 (or 6775 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1155233120 is about 33988.7204819481. The cubic root of 1155233120 is about 1049.2763328019.

Adding to 1155233120 its reverse (213325511), we get a palindrome (1368558631).

The spelling of 1155233120 in words is "one billion, one hundred fifty-five million, two hundred thirty-three thousand, one hundred twenty".