1188425 has 12 divisors (see below), whose sum is σ = 1684416. Its totient is φ = 814800.

The previous prime is 1188413. The next prime is 1188457. The reversal of 1188425 is 5248811.

It is not a de Polignac number, because 1188425 - 2⁴ = 1188409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 16.

It is a nialpdrome in base 8.

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, 3221 + ... + 3570.

It is an arithmetic number, because the mean of its divisors is an integer number (140368).

2^1188425 is an apocalyptic number.

It is an amenable number.

1188425 is a deficient number, since it is larger than the sum of its proper divisors (495991).

1188425 is an equidigital number, since it uses as much as digits as its factorization.

1188425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6808 (or 6803 counting only the distinct ones).

The product of its digits is 2560, while the sum is 29.

The square root of 1188425 is about 1090.1490723750. The cubic root of 1188425 is about 105.9230781672.

The spelling of 1188425 in words is "one million, one hundred eighty-eight thousand, four hundred twenty-five".