1152863256 has 64 divisors (see below), whose sum is σ = 2972390400. Its totient is φ = 372384000.

The previous prime is 1152863233. The next prime is 1152863269. The reversal of 1152863256 is 6523682511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144705 + ... + 152463.

It is an arithmetic number, because the mean of its divisors is an integer number (46443600).

Almost surely, 2^1152863256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1152863256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1486195200).

1152863256 is an abundant number, since it is smaller than the sum of its proper divisors (1819527144).

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

1152863256 is a wasteful number, since it uses less digits than its factorization.

1152863256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7960 (or 7956 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

The square root of 1152863256 is about 33953.8400773756. The cubic root of 1152863256 is about 1048.5583407695.

The spelling of 1152863256 in words is "one billion, one hundred fifty-two million, eight hundred sixty-three thousand, two hundred fifty-six".