1155530200 has 48 divisors (see below), whose sum is σ = 2930850360. Its totient is φ = 420192000.

The previous prime is 1155530197. The next prime is 1155530209. The reversal of 1155530200 is 20355511.

It is a super-2 number, since 2×1155530200² = 2670500086224080000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155530209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 260421 + ... + 264820.

Almost surely, 2^1155530200 is an apocalyptic number.

1155530200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1155530200 is an abundant number, since it is smaller than the sum of its proper divisors (1775320160).

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

1155530200 is a wasteful number, since it uses less digits than its factorization.

1155530200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525268 (or 525259 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 1155530200 is about 33993.0904743891. The cubic root of 1155530200 is about 1049.3662691362.

Adding to 1155530200 its reverse (20355511), we get a palindrome (1175885711).

The spelling of 1155530200 in words is "one billion, one hundred fifty-five million, five hundred thirty thousand, two hundred".