1155484872 has 64 divisors (see below), whose sum is σ = 3213000000. Its totient is φ = 384763392.

The previous prime is 1155484871. The next prime is 1155484901. The reversal of 1155484872 is 2784845511.

1155484872 is a `hidden beast` number, since 11 + 554 + 8 + 4 + 87 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (1155484871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267643 + ... + 271925.

It is an arithmetic number, because the mean of its divisors is an integer number (50203125).

Almost surely, 2^1155484872 is an apocalyptic number.

1155484872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1155484872 is an abundant number, since it is smaller than the sum of its proper divisors (2057515128).

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

1155484872 is a wasteful number, since it uses less digits than its factorization.

1155484872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5547 (or 5537 counting only the distinct ones).

The product of its digits is 358400, while the sum is 45.

The square root of 1155484872 is about 33992.4237441227. The cubic root of 1155484872 is about 1049.3525477881.

The spelling of 1155484872 in words is "one billion, one hundred fifty-five million, four hundred eighty-four thousand, eight hundred seventy-two".