1186825 has 12 divisors (see below), whose sum is σ = 1523340. Its totient is φ = 916160.

The previous prime is 1186813. The next prime is 1186837. The reversal of 1186825 is 5286811.

It is an interprime number because it is at equal distance from previous prime (1186813) and next prime (1186837).

It can be written as a sum of positive squares in 6 ways, for example, as 210681 + 976144 = 459^2 + 988^2 .

It is not a de Polignac number, because 1186825 - 2⁷ = 1186697 is a prime.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 94 + ... + 1543.

It is an arithmetic number, because the mean of its divisors is an integer number (126945).

2^1186825 is an apocalyptic number.

It is an amenable number.

1186825 is a deficient number, since it is larger than the sum of its proper divisors (336515).

1186825 is a wasteful number, since it uses less digits than its factorization.

1186825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676 (or 1671 counting only the distinct ones).

The product of its digits is 3840, while the sum is 31.

The square root of 1186825 is about 1089.4149806203. The cubic root of 1186825 is about 105.8755213760.

The spelling of 1186825 in words is "one million, one hundred eighty-six thousand, eight hundred twenty-five".