1155305300 has 36 divisors (see below), whose sum is σ = 2541371196. Its totient is φ = 455788800.

The previous prime is 1155305299. The next prime is 1155305309. The reversal of 1155305300 is 35035511.

It can be written as a sum of positive squares in 6 ways, for example, as 24462916 + 1130842384 = 4946^2 + 33628^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155305309) 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, 71831 + ... + 86430.

Almost surely, 2^1155305300 is an apocalyptic number.

1155305300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1155305300 is an abundant number, since it is smaller than the sum of its proper divisors (1386065896).

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

1155305300 is a wasteful number, since it uses less digits than its factorization.

1155305300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158348 (or 158341 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 1155305300 is about 33989.7822882113. The cubic root of 1155305300 is about 1049.2981855884.

The spelling of 1155305300 in words is "one billion, one hundred fifty-five million, three hundred five thousand, three hundred".