1155053205 has 48 divisors (see below), whose sum is σ = 2051771904. Its totient is φ = 600929280.

The previous prime is 1155053201. The next prime is 1155053269. The reversal of 1155053205 is 5023505511.

It is not a de Polignac number, because 1155053205 - 2² = 1155053201 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155053201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 308052 + ... + 311778.

It is an arithmetic number, because the mean of its divisors is an integer number (42745248).

Almost surely, 2^1155053205 is an apocalyptic number.

1155053205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1155053205 is a deficient number, since it is larger than the sum of its proper divisors (896718699).

1155053205 is a wasteful number, since it uses less digits than its factorization.

1155053205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3906 (or 3903 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 1155053205 is about 33986.0736920286. The cubic root of 1155053205 is about 1049.2218588465.

Adding to 1155053205 its reverse (5023505511), we get a palindrome (6178558716).

The spelling of 1155053205 in words is "one billion, one hundred fifty-five million, fifty-three thousand, two hundred five".