1185345 has 48 divisors (see below), whose sum is σ = 2426112. Its totient is φ = 524160.

The previous prime is 1185343. The next prime is 1185361. The reversal of 1185345 is 5435811.

It is not a de Polignac number, because 1185345 - 2¹ = 1185343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1185343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16660 + ... + 16730.

It is an arithmetic number, because the mean of its divisors is an integer number (50544).

2^1185345 is an apocalyptic number.

1185345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1185345 is an abundant number, since it is smaller than the sum of its proper divisors (1240767).

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

1185345 is a wasteful number, since it uses less digits than its factorization.

1185345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 139 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 1185345 is about 1088.7355050700. The cubic root of 1185345 is about 105.8314932754.

The spelling of 1185345 in words is "one million, one hundred eighty-five thousand, three hundred forty-five".