1152871056 has 100 divisors (see below), whose sum is σ = 3512436400. Its totient is φ = 364056768.

The previous prime is 1152871051. The next prime is 1152871061. The reversal of 1152871056 is 6501782511.

1152871056 is a `hidden beast` number, since 11 + 528 + 71 + 0 + 56 = 666.

It is an interprime number because it is at equal distance from previous prime (1152871051) and next prime (1152871061).

It is a super-2 number, since 2×1152871056² = 2658223343525110272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1152871056.

It is not an unprimeable number, because it can be changed into a prime (1152871051) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1215 + ... + 48033.

It is an arithmetic number, because the mean of its divisors is an integer number (35124364).

Almost surely, 2^1152871056 is an apocalyptic number.

1152871056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1152871056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1756218200).

1152871056 is an abundant number, since it is smaller than the sum of its proper divisors (2359565344).

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

1152871056 is a wasteful number, since it uses less digits than its factorization.

1152871056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46858 (or 46843 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 36.

The square root of 1152871056 is about 33953.9549390053. The cubic root of 1152871056 is about 1048.5607055300.

The spelling of 1152871056 in words is "one billion, one hundred fifty-two million, eight hundred seventy-one thousand, fifty-six".