1155332115 has 24 divisors (see below), whose sum is σ = 2288658528. Its totient is φ = 528151680.

The previous prime is 1155332047. The next prime is 1155332117. The reversal of 1155332115 is 5112335511.

1155332115 is a `hidden beast` number, since 1 + 15 + 533 + 2 + 115 = 666.

It is not a de Polignac number, because 1155332115 - 2⁹ = 1155331603 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1155332117) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1833546 + ... + 1834175.

It is an arithmetic number, because the mean of its divisors is an integer number (95360772).

Almost surely, 2^1155332115 is an apocalyptic number.

1155332115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1155332115 is a deficient number, since it is larger than the sum of its proper divisors (1133326413).

1155332115 is a wasteful number, since it uses less digits than its factorization.

1155332115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3667739 (or 3667736 counting only the distinct ones).

The product of its digits is 2250, while the sum is 27.

The square root of 1155332115 is about 33990.1767427002. The cubic root of 1155332115 is about 1049.3063037061.

Adding to 1155332115 its reverse (5112335511), we get a palindrome (6267667626).

The spelling of 1155332115 in words is "one billion, one hundred fifty-five million, three hundred thirty-two thousand, one hundred fifteen".