1153872 has 40 divisors (see below), whose sum is σ = 3313280. Its totient is φ = 384480.

The previous prime is 1153871. The next prime is 1153891. The reversal of 1153872 is 2783511.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904 + ... + 1767.

It is an arithmetic number, because the mean of its divisors is an integer number (82832).

2^1153872 is an apocalyptic number.

1153872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1153872 is an abundant number, since it is smaller than the sum of its proper divisors (2159408).

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

1153872 is a wasteful number, since it uses less digits than its factorization.

1153872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2688 (or 2676 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 1153872 is about 1074.1843417217. The cubic root of 1153872 is about 104.8864077690.

It can be divided in two parts, 1153 and 872, that added together give a square (2025 = 45²).

The spelling of 1153872 in words is "one million, one hundred fifty-three thousand, eight hundred seventy-two".