1185213 has 16 divisors (see below), whose sum is σ = 1676160. Its totient is φ = 743424.

The previous prime is 1185181. The next prime is 1185241. The reversal of 1185213 is 3125811.

It is not a de Polignac number, because 1185213 - 2⁵ = 1185181 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1185213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1185013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6045 + ... + 6237.

It is an arithmetic number, because the mean of its divisors is an integer number (104760).

2^1185213 is an apocalyptic number.

It is an amenable number.

1185213 is a deficient number, since it is larger than the sum of its proper divisors (490947).

1185213 is a wasteful number, since it uses less digits than its factorization.

1185213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308.

The product of its digits is 240, while the sum is 21.

The square root of 1185213 is about 1088.6748825981. The cubic root of 1185213 is about 105.8275646651.

It can be divided in two parts, 1185 and 213, that multiplied together give a triangular number (252405 = T₇₁₀).

The spelling of 1185213 in words is "one million, one hundred eighty-five thousand, two hundred thirteen".