1152864 has 36 divisors (see below), whose sum is σ = 3279276. Its totient is φ = 384192.

The previous prime is 1152857. The next prime is 1152881. The reversal of 1152864 is 4682511.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1714 + ... + 2289.

It is an arithmetic number, because the mean of its divisors is an integer number (91091).

2^1152864 is an apocalyptic number.

It is an amenable number.

1152864 is an abundant number, since it is smaller than the sum of its proper divisors (2126412).

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

1152864 is a wasteful number, since it uses less digits than its factorization.

1152864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4019 (or 4008 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 1152864 is about 1073.7150459968. The cubic root of 1152864 is about 104.8558566332.

It can be divided in two parts, 1152 and 864, that added together give a triangular number (2016 = T₆₃).

The spelling of 1152864 in words is "one million, one hundred fifty-two thousand, eight hundred sixty-four".