1185056 has 24 divisors (see below), whose sum is σ = 2415420. Its totient is φ = 571648.

The previous prime is 1185017. The next prime is 1185071. The reversal of 1185056 is 6505811.

It can be written as a sum of positive squares in 2 ways, for example, as 1175056 + 10000 = 1084^2 + 100^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290 + ... + 1566.

2^1185056 is an apocalyptic number.

1185056 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 1185056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1207710).

1185056 is an abundant number, since it is smaller than the sum of its proper divisors (1230364).

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

1185056 is a wasteful number, since it uses less digits than its factorization.

1185056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316 (or 1308 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 26.

The square root of 1185056 is about 1088.6027742019. The cubic root of 1185056 is about 105.8228916201.

Subtracting from 1185056 its sum of digits (26), we obtain a triangular number (1185030 = T₁₅₃₉).

The spelling of 1185056 in words is "one million, one hundred eighty-five thousand, fifty-six".