1153255155 has 48 divisors (see below), whose sum is σ = 2011044096. Its totient is φ = 564071040.

The previous prime is 1153255127. The next prime is 1153255171. The reversal of 1153255155 is 5515523511.

It is not a de Polignac number, because 1153255155 - 2⁶ = 1153255091 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 411810 + ... + 414600.

It is an arithmetic number, because the mean of its divisors is an integer number (41896752).

Almost surely, 2^1153255155 is an apocalyptic number.

1153255155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1153255155 is a deficient number, since it is larger than the sum of its proper divisors (857788941).

1153255155 is a wasteful number, since it uses less digits than its factorization.

1153255155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988 (or 2975 counting only the distinct ones).

The product of its digits is 18750, while the sum is 33.

The square root of 1153255155 is about 33959.6106426443. The cubic root of 1153255155 is about 1048.6771413323.

Adding to 1153255155 its reverse (5515523511), we get a palindrome (6668778666).

The spelling of 1153255155 in words is "one billion, one hundred fifty-three million, two hundred fifty-five thousand, one hundred fifty-five".