1153255140 has 36 divisors (see below), whose sum is σ = 3498207804. Its totient is φ = 307534656.

The previous prime is 1153255127. The next prime is 1153255171. The reversal of 1153255140 is 415523511.

1153255140 is a `hidden beast` number, since 115 + 32 + 5 + 514 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 195105024 + 958150116 = 13968^2 + 30954^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3203307 + ... + 3203666.

It is an arithmetic number, because the mean of its divisors is an integer number (97172439).

Almost surely, 2^1153255140 is an apocalyptic number.

1153255140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1153255140 is an abundant number, since it is smaller than the sum of its proper divisors (2344952664).

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

1153255140 is a wasteful number, since it uses less digits than its factorization.

1153255140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6406988 (or 6406983 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1153255140 is about 33959.6104217937. The cubic root of 1153255140 is about 1048.6771367857.

Adding to 1153255140 its reverse (415523511), we get a palindrome (1568778651).

The spelling of 1153255140 in words is "one billion, one hundred fifty-three million, two hundred fifty-five thousand, one hundred forty".