1155545232 has 40 divisors (see below), whose sum is σ = 3011589984. Its totient is φ = 381771264.

The previous prime is 1155545227. The next prime is 1155545239. The reversal of 1155545232 is 2325455511.

It is a junction number, because it is equal to n+sod(n) for n = 1155545193 and 1155545202.

It is not an unprimeable number, because it can be changed into a prime (1155545239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101098 + ... + 111945.

Almost surely, 2^1155545232 is an apocalyptic number.

1155545232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1155545232 is an abundant number, since it is smaller than the sum of its proper divisors (1856044752).

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

1155545232 is a wasteful number, since it uses less digits than its factorization.

1155545232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213167 (or 213161 counting only the distinct ones).

The product of its digits is 30000, while the sum is 33.

The square root of 1155545232 is about 33993.3115774265. The cubic root of 1155545232 is about 1049.3708194299.

It can be divided in two parts, 115554 and 5232, that added together give a triangular number (120786 = T₄₉₁).

The spelling of 1155545232 in words is "one billion, one hundred fifty-five million, five hundred forty-five thousand, two hundred thirty-two".